X30 Uniform Titles - General Information (Variable Data Field)
Each uniform title field is unique in its definition and scope. For specific information, select from the list below.
130 Heading - Uniform Title (NR)
430 See From Reference - Uniform Title (R)
530 See Also From Reference - Uniform Title (R)
730 Established Heading Linking Entry - Uniform Title (R)
Record requirements: The National level record requirement
for the uniform title fields is Mandatory if applicable, except for field 730 which is Optional. For the national level requirements by subfield, see the specific field.
Field repeatability: See the specific field for its repeatability
.
Guidelines for applying content designators:
The content designators identify the subelements occurring in a title that identifies an item or a series that is not entered under a name in a name/title heading . The title is constructed according to the generally accepted cataloging and thesaurus-building rules [e.g., Anglo-American Cataloguing Rules (AACR 2), Library of Congress Subject Headings (LCSH)].
Uniform titles used in phrase subject headings (e.g., Bible and atheism) are contained in the X50 fields
.
A title entered under a name is contained in subfield $t (Title of a work) in the field appropriate for the author's name (X00
, X10
, X11
).
The indicators, subfield codes, and input conventions for the uniform title fields 130, 430, 530, and 730 follow similar patterns. Guidelines for applying them are below. Subfields are grouped by type of entry.
For indicator and subfield code definitions and examples, National level (NLR) record requirements , and designator repeatability , see table below. An asterisk ( * ) in the column indicates that the requirement varies. See table in the specific field.:
Position | Description | NLR | Repeatability |
Field X30 | Uniform Titles | * | * |
Indicator: | |||
First | Undefined; contains a blank | M | |
Second | |||
130, 430, 530 | Nonfiling characters [130, 430, 530] | M | |
0 | No nonfiling characters [130, 430, 530] | A | |
1-9 | Number of nonfiling characters [130, 430, 530] | A | |
730 | M | ||
0 | A | ||
1 | A | ||
2 | A | ||
3 | A | ||
4 | A | ||
5 | A | ||
6 | A | ||
7 | A | ||
Subfield code: | |||
Title portion | |||
$a | M | NR | |
$d | A | R | |
$f | A | NR | |
$g | A | NR | |
$h | * | NR | |
$k | A | R | |
$l | A | NR | |
$m | A | R | |
$n | A | R | |
$o | A | NR | |
$p | A | R | |
$r | A | NR | |
$s | A | NR | |
$t | A | NR | |
Subject subdivision portion | |||
$v | A | R | |
$x | A | R | |
$y | A | R | |
$z | A | R | |
Tracing and linking subfields | |||
$i | Reference instruction phrase [430, 530] | A | NR |
$w | Control subfield [430, 530, 730] | A | NR |
$0 | Record control number [530, 730] | A | R |
$2 | A | NR | |
$5 | Institution to which field applies [430, 530, 730] | A | R |
$6 | A | NR | |
$8 | O | R |
Ambiguous headings
(what is considered a "uniform title")
Display constant for X30 fields
Subfields $v - Record control number [730] [obsolete] [USMARC only]
$0 - Record control number [530, 730] [new]
$3 - Authority record control number [obsolete, 1997] [CAN/MARC only]
In USMARC, from 1993 to 1995, subfield $v was defined as Record control number in the 7XX Heading Linking Entry fields. When subfield $v was adapted for form subdivisions in MARC bibliographic and authority heading fields in 1995, subfield $v was redefined as Form subdivision. In 1997, subfield $0 was added as Record control number in 5XX and 7XX fields.
Related MARC fields or documents:
7XX Heading Linking Entries - General Information
880 Alternate Graphic Representation
Tracing and Reference Fields - General Information
MARC Code List for Organizations
Symbols and Interlibrary Loan Policies in Canada
See also:
