151 Heading - Geographic Name (NR) (Variable Data Field)

Field definition and scope:

Field 151 contains a geographic name used as a heading in an established heading record , an established heading and subdivision record , a traced or an untraced reference record , or a reference and subdivision record . In an established heading record, field 151 contains the established form of a geographic name. In records for references, this field contains an unestablished form of a geographic name.

The National level record requirement for this field is Mandatory if applicable.

Field 151 is NOT repeatable .

Guidelines for applying content designators:

The content designators identify the subelements occurring in geographic name headings constructed according to generally accepted cataloging and thesaurus-building conventions [e.g., Anglo-American Cataloguing Rules (AACR 2), Library of Congress Subject Headings (LCSH)].

Jurisdiction names (including those that are ecclesiastical entities) alone or followed by subject subdivisions are X51 geographic names.

A corporate name, a form subheading, a title of a work, and/or a city section name entered under the name of a jurisdiction are contained in the X10 fields .

Geographic names used in phrase subject headings (e.g., Iran in the Koran) are contained in the X50 fields .

A geographic name that is authorized for use only as a subject subdivision part of an extended subject heading is contained in a 181 (Geographic Subdivision) field.

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

See: Examples for this field.

Input conventions:

Ambiguous headings (what is considered a "geographic" name)

Punctuation

Spacing

Display constant

Content designator history:

Second Indicator - Nonfiling characters [obsolete]: The second indicator position was made obsolete in fields 151, 451, and 551 in 1993. The values were: 0-9 (Number of nonfiling characters present).

Subfield $b - Name following place as entry element [obsolete]: Subfield $b was made obsolete in fields 151, 451, and 551 in 1987. A city section name entered under the name of a jurisdiction is contained in an X10 field . Records created before this change may contain an X51 field with a subfield $b for this type of name.

LC guidelines for usage:

151 Heading - Geographic Name

Related MARC field or document:

X51 Geographic Names - General Information

See also:

1XX Headings

Variable Data Fields