774 Constituent Unit Entry

Field definition and scope:

Field 774 contains information concerning a constituent unit associated with a larger bibliographic unit (vertical relationship). Constituent units may be part of a single bibliographic item, a multipart item, or a collection. The constituent item may or may not be described in a separate bibliographic record.

When a note is generated from this field, the introductory phrase Constituent unit: may be generated based on the field tag for display.

The National level record requirement for this field is Optional.

Field 774 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements, and designator repeatability, see table below:

Position	Description	NLR	MLR	Repeatability
Field 774	Constituent Unit Entry	O	O	R
Indicator:
First	Note controller	M
0	Display note	A
1	Do not display note	A

Second	Display constant controller	M
#	Constituent unit	A
8	No display constant generated	A

Subfield code:
$a	Main entry heading	A	O	NR
$b	Edition	A	O	NR
$c	Qualifying information	A	O	NR
$d	Place, publisher, and date of publication	O	O	NR
$g	Related parts	A	O	R
$h	Physical description	O	O	NR
$i	Relationship information	O	O	R
$k	Series data for related item	O	O	R
$m	Material-specific details	O	O	NR
$n	Note	O	O	R
$o	Other item identifier	O	O	R
$r	Report number	A	O	R
$s	Uniform title	A	O	NR
$t	Title	A	O	NR
$u	Standard Technical Report Number	A	O	NR
$w	Record control number	A	O	R
$x	International Standard Serial Number	A	O	NR
$y	CODEN designation	O	O	NR
$z	International Standard Book Number	O	O	R
$4	Relationship	O	O	R
$6	Linkage	A	O	NR
$7	Control subfield	O	O	NR
	/0 - Type of main entry heading
	/1 - Form of name
	/2 - Type of record
	/3 - Bibliographic level
$8	Field link and sequence number	O	O	R

See: Example for this field.

Input conventions:

Display constant

76X-79X Input Conventions

Content designator history:

Second Indicator - Display constant controller

Value 0 - Includes [obsolete] [CAN/MARC only]

76X-79X Content Designator History