First indicator - Note controller

0  Display note

1  Do not display note

Second indicator - Display constant controller

#  Main series (760)

Has subseries (762)

8  No display constant generated

Subfield codes:

a  Main entry heading (NR)

b  Edition (NR)

c  Qualifying information (NR)  [Pre-AACR2]

d  Place, publisher, and date of publication (NR)

g  Related parts (R)

h  Physical description (NR)

i   Relationship information (R)

m Material-specific details (NR)

n  Note (R)

o  Other item identifier (R)

s  Uniform title (NR)

t   Title (NR)

w  Record control number (R)

x  International Standard Serial Number (NR)

y  CODEN designation (NR)

4  Relationship code (R)

6  Linkage (NR)

7  Control subfield (NR)  [Not used]

Character position 0 - Type of main entry heading

Character position 1 - Form of name

Character position 2 - Type of record

Character position 3 - Bibliographic level

8  Field link and sequence number (R)

NOTE:  See MARC 21 Format for Bibliographic Data (760 Main Series Entry and 762 Subseries Entry) for code definitions not given below.


Fields 760 and 762 are used by the ISSN centers to transmit the ISSN for main and subseries to the International Centre in Paris.

Field 760 contains the main series when the record in hand is for a subseries.

Display constants

Main series: or Subseries of:  (760)

Has subseries:  (762)

Field 762 contains the entry for a subseries associated with the record when the record in hand is for the parent or main series.

Field 760 was formerly mandatory whenever a series was present in the record.  Both fields 760 and 762 are now mandatory for use by NSDP only.


The first indicator determines the note display.  When a linking note is to be generated from field 760 or 762, set the first indicator to value "0."  When a linking note is input in field 580, set the first indicator to value "1."

The second indicator determines whether the display constant is generated or whether text added in subfield $i is intended to be displayed with the other data in the field.  When adding text to subfield $i to display with the field, set the second indicator to "8."


The most common subfields are (in input order):  $a, $s, $t, $g, $x, $w.  For a description of subfields defined for this field, see Linking Entry Fields - General Information.


As of July 1986 LC, with the exception of NSDP, does not input these fields in new records.  When adapting existing records, whether AACR2 or pre-AACR2, LC deletes all information except for subfields $x and/or $w.  If neither of these subfields is present, LC deletes the entire field.

Related fields, etc.

Linking Entry Fields - General Information

760 Main Series Entry  (MARC 21 Format for Bibliographic Data)

762 Subseries Entry  (MARC 21 Format for Bibliographic Data)

See also:

76X-78X  Linking Entry Fields

Variable Data Fields

Section E.  MARC 21 Format for Serials as Applied Within CONSER

CONSER Editing Guide:  Contents