Field definition and scope:

Each uniform title field is unique in its definition and scope.  For specific information, select from the list below.

630  Subject Added Entry - Publication Title  (R)

730  Added Entry - Publication Title  (R)

The X30 fields are repeatable.

Guidelines for applying content designators:

The content designators identify the subelements occurring in uniform or conventional titles, title page title, or series title headings that are not entered under a name in a name/title heading and that are constructed according to the generally accepted cataloging and thesaurus-building rules (e.g., Anglo-American Cataloguing Rules (AACR 2) and Library of Congress Subject Headings (LCSH).

A uniform title heading is used to bring together bibliographic entries for a work when various issues have appeared under different titles and to provide identification for a work when the title by which it is known differs from the title proper of a particular issue or when different publications have identical titles.  A uniform title entered under a name is contained in field 245 or in subfield $t (Title of a work) in the field appropriate for the author's name (X00, X10, X11).  Uniform titles used in phrase subject headings (e.g., Bible in atheism) are contained in field 650 (Subject Added Entry - Topical Term).

Guidelines for applying all content designators except the second indicator position are given in this section.  A field-specific list of content designators and guidelines for applying the second indicator position are provided under the description for each specific X30 field.

For indicator and subfield code definitions and examples, and designator repeatability, see table below.  An asterisk ( * ) in the column indicates that the requirement varies.  See table in the specific field.:

Position

Description

Repeatability

Field X30

Uniform Titles

R

Indicator:

 

 

First

Nonfiling characters

 

0

No nonfiling characters present

 

1-9

Number of nonfiling characters present

 

 

 

 

Second

See the specific X30 field.

 

 

 

 

Subfield code:

 

 

 

Title portion

 

$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

 

 

 

 

Subject subdivision portion

 

$v

Form subdivision  [630]

R

$x

General subdivision  [630]

R

$y

Chronological subdivision  [630]

R

$z

Geographic subdivision  [630]

R

 

 

 

 

Control subfields

 

$0

Authority record control number

R

$2

Source of heading or term  [630]

NR

$6

Linkage

NR

$8

Field link and sequence number

R

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:

880  Alternate Graphic Representation

MARC Code List for Organizations

MARC Code List for Relators

Source Codes for Vocabularies, Rules, and Schemes

Value Lists for Codes and Controlled Vocabularies

See also:

Names:  X00-X30 Fields