USMARC FORMAT FOR BIBLIOGRAPHIC DATA: FIELD LIST

1994 Edition, including Update No. 1 (March 1995), Update No. 2 (March 1996), and Update No. 3 (July 1997)

Network Development and MARC Standards Office

This document lists all valid and obsolete data elements that may appear in USMARC bibliographic records. It is intended to meet the need for a simple data element list to support MARC system development and online validation of MARC data elements. This listing does not include any descriptions or examples of MARC data elements. Descriptions and examples can be found in the USMARC Concise Bibliographic Format.


--Added Entry Fields (70X-75X)--

   700 - ADDED ENTRY--PERSONAL NAME (R)

      Indicators
         First - Type of personal name entry element
            0 - Forename
            1 - Surname
            2 - Multiple surname [OBSOLETE]
            3 - Family name
         Second - Type of added entry
            # - No information provided
            0 - Alternative entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Secondary entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Printed on card (VM) [OBSOLETE]
            2 - Analytical entry
            3 - Not printed on card (VM) [OBSOLETE]
      Subfield Codes
         $a - Personal name (NR)
         $b - Numeration (NR)
         $c - Titles and other words associated with a name (R)
         $d - Dates associated with a name (NR)
         $e - Relator term (R)
         $f - Date of a work (NR)
         $g - Miscellaneous information (NR)
         $h - Medium (NR)
         $k - Form subheading (R)
         $l - Language of a work (NR)
         $m - Medium of performance for music (R)
         $n - Number of part/section of a work (R)
         $o - Arranged statement for music (NR)
         $p - Name of part/section of a work (R)
         $q - Fuller form of name (NR)
         $r - Key for music (NR)
         $s - Version (NR)
         $t - Title of a work (NR)
         $u - Affiliation (NR)
         $x - International Standard Serial Number (NR)
         $3 - Materials specified (NR)
         $4 - Relator code (R)
         $5 - Institution to which field applies (NR)
         $6 - Linkage (NR)
   705 - ADDED ENTRY--PERSONAL NAME (PERFORMER) (MU) [OBSOLETE]
      Indicators
         First - Type of personal name entry element
            0 - Forename
            1 - Single surname
            2 - Multiple surname
            3 - Family name
         Second - Type of added entry
            0 - Alternative entry
            1 - Secondary entry
            2 - Analytical entry
      Subfield Codes
         $a - Personal name (NR)
         $b - Numeration (NR)
         $c - Titles and other words associated with a name (R)
         $d - Dates associated with a name (NR)
         $e - Relator term (R)
         $f - Date of a work (NR)
         $g - Miscellaneous information (NR)
         $h - Medium (NR)
         $k - Form subheading (R)
         $l - Language of a work (NR)
         $m - Medium of performance for music (R)
         $n - Number of part/section of a work (R)
         $o - Arranged statement for music (NR)
         $p - Name of part/section of a work (R)
         $r - Key for music (NR)
         $s - Version (NR)
         $t - Title of a work (NR)
   710 - ADDED ENTRY--CORPORATE NAME (R)
      Indicators
         First - Type of corporate name entry element
            0 - Inverted name
            1 - Jurisdiction name
            2 - Name in direct order
         Second - Type of added entry
            # - No information provided
            0 - Alternative entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Secondary entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Printed on card (VM) [OBSOLETE]
            2 - Analytical entry
            3 - Not printed on card (VM) [OBSOLETE]
      Subfield Codes
         $a - Corporate name or jurisdiction name as entry element
         (NR)
         $b - Subordinate unit (R)
         $c - Location of meeting (NR)
         $d - Date of meeting or treaty signing (R)
         $e - Relator term (R)
         $f - Date of a work (NR)
         $g - Miscellaneous information (NR)
         $h - Medium (NR)
         $k - Form subheading (R)
         $l - Language of a work (NR)
         $m - Medium of performance for music (R)
         $n - Number of part/section/meeting (R)
         $o - Arranged statement for music (NR)
         $p - Name of part/section of a work (R)
         $r - Key for music (NR)
         $s - Version (NR)
         $t - Title of a work (NR)
         $u - Affiliation (NR)
         $x - International Standard Serial Number (NR)
         $3 - Materials specified (NR)
         $4 - Relator code (R)
         $5 - Institution to which field applies (NR)
         $6 - Linkage (NR)
   711 - ADDED ENTRY--MEETING NAME (R)
      Indicators
         First - Type of meeting name entry element
            0 - Inverted name
            1 - Jurisdiction name
            2 - Name in direct order
         Second - Type of added entry
            # - No information provided
            0 - Alternative entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Secondary entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Printed on card (VM) [OBSOLETE]
            2 - Analytical entry
            3 - Not printed on card (VM) [OBSOLETE]
      Subfield Codes
         $a - Meeting name or jurisdiction name as entry element
         (NR)
         $b - Number (BK CF MP MU SE VM MX) [OBSOLETE]
         $c - Location of meeting (NR)
         $d - Date of meeting (NR)
         $e - Subordinate unit (R)
         $f - Date of a work (NR)
         $g - Miscellaneous information (NR)
         $h - Medium (NR)
         $k - Form subheading (R)
         $l - Language of a work (NR)
         $n - Number of part/section/meeting (R)
         $p - Name of part/section of a work (R)
         $q - Name of meeting following jurisdiction name entry
         element (NR)
         $s - Version (NR)
         $t - Title of a work (NR)
         $u - Affiliation (NR)
         $x - International Standard Serial Number (NR)
         $3 - Materials specified (NR)
         $4 - Relator code (R)
         $5 - Institution to which field applies (NR)
         $6 - Linkage (NR)
   715 - ADDED ENTRY--CORPORATE NAME (PERFORMING GROUP) (MU)
   [OBSOLETE]
      Indicators
         First - Type of corporate name entry element
            0 - Inverted name
            1 - Jurisdiction name
            2 - Name in direct order
         Second - Type of added entry
            0 - Alternative entry
            1 - Secondary entry
            2 - Analytical entry
      Subfield Codes
         $a - Corporate name or jurisdiction name (NR)
         $b - Subordinate unit (R)
         $e - Relator term (R)
         $f - Date of a work (NR)
         $g - Miscellaneous information (NR)
         $h - Medium (NR)
         $k - Form subheading (R)
         $l - Language of a work (NR)
         $m - Medium of performance for music (R)
         $n - Number of part/section/meeting (R)
         $o - Arranged statement for music (NR)
         $p - Name of part/section of a work (R)
         $r - Key for music (NR)
         $s - Version (NR)
         $t - Title of a work (NR)
         $u - Nonprinting information (NR)
   720 - ADDED ENTRY--UNCONTROLLED NAME (R)
      Indicators
         First - Type of name
            # - Not specified
            1 - Personal
            2 - Other
         Second - Undefined
      Subfield Codes
         $a - Name (NR)
         $e - Relator term (R)
         $4 - Relator code (R)
         $6 - Linkage (NR)
   730 - ADDED ENTRY--UNIFORM TITLE (R)
      Indicators
         First - Nonfiling characters
            0-9 - Number of nonfiling characters present
            # - Nonfiling characters not specified [OBSOLETE]
         Second - Type of added entry
            # - No information provided
            0 - Alternative entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Secondary entry (BK CF MP MU SE MX) [OBSOLETE]
            1 - Printed on card (VM) [OBSOLETE]
            2 - Analytical entry
            3 - Not printed on card (VM) [OBSOLETE]
      Subfield Codes
         $a - Uniform title (NR)
         $d - Date of treaty signing (R)
         $f - Date of a work (NR)
         $g - Miscellaneous information (NR)
         $h - Medium (NR)
         $k - Form subheading (R)
         $l - Language of a work (NR)
         $m - Medium of performance for music (R)
         $n - Number of part/section of a work (R)
         $o - Arranged statement for music (NR)
         $p - Name of part/section of a work (R)
         $r - Key for music (NR)
         $s - Version (NR)
         $t - Title of a work (NR)
         $x - International Standard Serial Number (NR)
         $3 - Materials specified (NR)
         $5 - Institution to which field applies (NR)
         $6 - Linkage (NR)
   740 - ADDED ENTRY--UNCONTROLLED RELATED/ANALYTICAL TITLE (R)
      Indicators
         First - Nonfiling characters
            0-9 - Number of nonfiling characters present
            # - Nonfiling characters not specified [OBSOLETE]
         Second - Type of added entry
            # - No information provided
            0 - Alternative entry (BK AM CF MP MU) [OBSOLETE]
            1 - Secondary entry (BK AM CF MP MU) [OBSOLETE]
            1 - Printed on card (VM) [OBSOLETE]
            2 - Analytical entry
            3 - Not printed on card (VM) [OBSOLETE]
      Subfield Codes
         $a - Uncontrolled related/analytical title (NR)
         $h - Medium (NR)
         $n - Number of part/section of a work (R)
         $p - Name of part/section of a work (R)
         $5 - Institution to which field applies (NR)
         $6 - Linkage (NR)
   752 - ADDED ENTRY--HIERARCHICAL PLACE NAME (R)
      Indicators
      Subfield Codes
         $a - Country (NR)
         $b - State, province, territory (NR)
         $c - County, region, islands area (NR)
         $d - City (NR)
         $6 - Linkage (NR)
   753 - SYSTEM DETAILS ACCESS TO COMPUTER FILES (R)
      Indicators
      Subfield Codes
         $a - Make and model of machine (NR)
         $b - Programming language (NR)
         $c - Operating system (NR)
         $6 - Linkage (NR)
   754 - ADDED ENTRY--TAXONOMIC IDENTIFICATION (R)
      Indicators
      Subfield Codes
         $a - Taxonomic name/taxonomic hierarchical category (R)
         $2 - Source of taxonomic identification (NR)
         $6 - Linkage (NR)
      Example
   755 - ADDED ENTRY--PHYSICAL CHARACTERISTICS (R) [OBSOLETE]
      Indicators
      Subfield Codes
         $a - Access term (NR)
         $x - General subdivision (R)
         $y - Chronological subdivision (R)
         $z - Geographic subdivision (R)
         $2 - Source of term (NR)
         $3 - Materials specified (NR)
         $6 - Linkage (NR)

--Linking Entry Fields (76X-78X)--

   Record Links and Notes

   760 - MAIN SERIES ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Main series
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $s - Uniform title (NR)
         $t - Title (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
      Example
   762 - SUBSERIES ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Has subseries
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $s - Uniform title (NR)
         $t - Title (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   765 - ORIGINAL LANGUAGE ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Translation of
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   767 - TRANSLATION ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Translated as
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   770 - SUPPLEMENT/SPECIAL ISSUE ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Has supplement
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE] 
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   772 - PARENT RECORD ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Supplement to
            0 - Parent
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   773 - HOST ITEM ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - In
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $p - Abbreviated title (NR)
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $3 - Materials specified (NR)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   774 - CONSTITUENT UNIT ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Constituent unit
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   775 - OTHER EDITION ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Other edition available
            8 - No display constant generated
         Second - Edition entry same as main entry or title (SE)
         [OBSOLETE]
            0 - Entry not the same
            1 - Entry is the same as title
            2 - Entry is the same as main entry and title
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $e - Language code (NR)
         $f - Country code (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   776 - ADDITIONAL PHYSICAL FORM ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Available in another form
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description of source (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   777 - ISSUED WITH ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Issued with
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $s - Uniform title (NR)
         $t - Title (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   780 - PRECEDING ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Type of relationship
            0 - Continues
            1 - Continues in part
            2 - Supersedes
            3 - Supersedes in part
            4 - Formed by the union of ... and ...
            5 - Absorbed
            6 - Absorbed in part
            7 - Separated from
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   785 - SUCCEEDING ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Type of relationship
            0 - Continued by
            1 - Continued in part by
            2 - Superseded by
            3 - Superseded in part by
            4 - Absorbed by
            5 - Absorbed in part by
            6 - Split into ... and ...
            7 - Merged with ... to form ...
            8 - Changed back to
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $q - Parallel title (NR) (BK SE) [OBSOLETE]
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   786 - DATA SOURCE ENTRY (R) [PROVISIONAL]
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Data source
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $j - Period of content (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level
   787 - NONSPECIFIC RELATIONSHIP ENTRY (R)
      Indicators
         First - Note controller
            0 - Display note
            1 - Do not display note
         Second - Display constant controller
            # - Related item
            8 - No display constant generated
      Subfield Codes
         $a - Main entry heading (NR)
         $b - Edition (NR)
         $c - Qualifying information (NR)
         $d - Place, publisher, and date of publication (NR)
         $g - Relationship information (R)
         $h - Physical description (NR)
         $i - Display text (NR)
         $k - Series data for related item (R)
         $m - Material-specific details (NR)
         $n - Note (R)
         $o - Other item identifier (R)
         $r - Report number (R)
         $s - Uniform title (NR)
         $t - Title (NR)
         $u - Standard Technical Report Number (NR)
         $w - Record control number (R)
         $x - International Standard Serial Number (NR)
         $y - CODEN designation (NR)
         $z - International Standard Book Number (R)
         $6 - Linkage (NR)
         $7 - Control subfield (NR)
            0 - Type of main entry heading
            1 - Form of name
            2 - Type of record
            3 - Bibliographic level