Field definition and scope:

Field 630 contains a publication title used as a subject added entry.

Subject added entries are assigned to a community information record to provide access according to established subject cataloging principles and guidelines.  Field 630 may be used by any institution assigning subject headings based on the lists and authority files identified in the second indicator position or in subfield $2 (Source of heading or term).

Field 630 is repeatable.

Guidelines for applying content designators:

For indicator and subfield code definitions and examples, and designator repeatability, see table below:

Position

Description

Repeatability

Field 630

Subject Added Entry - Publication Title

R

Indicator:

 

 

First

Nonfiling characters

 

0

No nonfiling characters present

 

1-9

Number of nonfiling characters present

 

 

 

 

Second

Thesaurus

 

0

Library of Congress Subject Headings

 

1

LC subject headings for children's literature

 

2

Medical Subject Headings

 

3

National Agricultural Library subject authority file

 

4

Source not specified

 

5

Canadian Subject Headings

 

6

Répertoire de vedettes-matière

 

7

Source specified in subfield $2

 

 

 

 

Subfield code:

 

 

$a

Title

NR

$f

Date of a work

NR

$n

Number of part/section of a work

R

$p

Name of part/section of a work

R

$s

Version

NR

$v

Form subdivision

R

$x

General subdivision

R

$y

Chronological subdivision

R

$z

Geographic subdivision

R

$0

Authority record control number

R

$2

Source of heading or term

NR

$6

Linkage

NR

$8

Field link and sequence number

R

 

See:  Example for this field.

Input conventions:

Ambiguous headings

Punctuation

Spacing

Display constant

Initial articles

Content designator history:

Subfield $0 - Authority record control number  [new, 2007]

Related MARC fields or documents:

X30  Uniform Titles - General Information

880  Alternate Graphic Representation

Source Codes for Vocabularies, Rules, and Schemes:

Subject Heading and Term Source Codes

See also:

6XX  Subject Access Fields

Variable Data Fields