6xx Introduction

Contents   Fixed field   Access points   0xx   1xx   2xx   3xx   4xx   5xx   6xx   7xx   8xx   9xx   Control subfields

691  Local Subject Added Entry--Geographic Name (R)

Input Standards
Optional/Optional
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Thesaurus
blank character Undefined
0 Library of Congress subject heading
1 LC subject heading for children's literature
2 Medical subject heading
3 National Agricultural Library subject authority file
4 Source not specified
5 Canadian subject heading
6 Répertoire de vedettes-matière
7 Source is specified in subfield ǂ2
8 Sears subject heading
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa Geographic name (R) Mandatory/Mandatory
ǂb Geographic element following geographic name (R) Required if applicable/Required if applicable
ǂg Miscellaneous information (R) Required if applicable/Required if applicable
ǂv Form subdivision (R) Required if applicable/Required if applicable
ǂx General subdivision (R) Required if applicable/Required if applicable
ǂy Chronological subdivision (R) Required if applicable/Required if applicable
ǂz Geographic subdivision (R) Required if applicable/Required if applicable
ǂ2 Source of heading or term (NR) Required if applicable/Required if applicable
ǂ3 Materials specified (R) Optional/Optional
ǂ8 Field link and sequence number (R) Optional/Optional
ǂ9 Special entry (NR) Optional/Optional

Definition

A locally devised geographic name used as a subject added entry. Use field 691 only for geographic names not based on LC, AC, NLM, NAL, NLC or Sears or for geographic names based on nonstandard applications of these authorities. Use field 651 (Subject Added Entry–Geographic Name) if the geographic name is based on LC, AC, NLM, NAL, NLC or Sears.
Master record retention

Field 691 is not retained in the master record. However, it is retained in exported records and records delivered via other services.

1st Indicator

Undefined. The 1st indicator position is undefined and contains a blank ( blank character ).

blank character

Undefined

2nd Indicator

Thesaurus. The thesaurus or subject heading system used in constructing the subject heading.
 
blank character

Undefined. The first indicator is undefined and contains a blank ( blank character ).
 
0

Library of Congress subject heading. The formulation of the subject added entry conforms to Library of Congress Subject Headings (LCSH). This includes:

  • Geographic headings (or geographic headings and subdivisions) found in the LC subject authority file or in the latest edition of LCSH, including the latest supplements
  • Geographic headings found in the LC subject authority file or in the latest edition of LCSH to which is added a free-floating or regular subdivision according to the rules stated in the Subject Headings Manual (formerly called Subject Cataloging Manual: Subject Headings), particularly subdivisions listed in the pattern lists and geographic subdivisions
  • Geographic headings found in the LC authority files, in the latest edition of LCSH or constructed following AACR2 (for non-natural features only) to which is added a free-floating or regular subdivision according to the rules stated in the Subject Headings Manual (formerly called Subject Cataloging Manual: Subject Headings), particularly subdivisions listed in the pattern lists and geographic subdivisions
  • Geographic headings constructed with free-floating phrases according to the rules in LCSH (e.g., ...Metropolitan area, ...Region or ...Suburban area)

Use of value 0 requires that the added entry is appropriate for use in LCSH.
 
1

LC subject heading for children's literature. The formulation of the subject added entry conforms to the "AC Subject Headings" section of Library of Congress Subject Headings. Use of value 1 requires that the added entry is appropriate for use in the LC Annotated Card Program.
 
2

Medical subject heading. The formulation of the subject added entry conforms to the National Library of Medicine (NLM) authority files. Use of value 2 requires that the added entry is appropriate for use in the NLM authority files.
 
3

National Agricultural Library subject authority file. The formulation of the subject added entry conforms to the National Agricultural Library (NAL) subject authority file. Use of value 3 requires that the added entry is appropriate for use in the NAL authority files.
 
4

Source not specified. The formulation of the subject added entry conforms to a controlled list, but the source cannot be specified by one of the thesaurus or subject heading systems covered by the other 2nd indicator values or by a code for a specific subject heading list in subfield ǂ2. Use field 653 (Index Term–Uncontrolled) to record terms that are not derived from controlled subject heading lists.
 
5

Canadian subject heading. The formulation of the subject added entry conforms to the Canadian Subject Headings. Use of value 5 requires that the added entry is appropriate for use in Canadian Subject Headings.
 
6

Répertoire de vedettes-matière. The formulation of the subject added entry conforms to the Répertoire de vedettes-matière maintained by the Bibliothèque de l'Université de Laval. Use of value 6 requires that the added entry is appropriate for use in Répertoire de vedettes-matière.
 
7

Source is specified in subfield ǂ2 . Subject headings or terms based on other subject authorities (i.e., on authorities other than those listed here). Identify the source in subfield ǂ2.

691   7 Children of pregnant women. ǂ2 henn
 
8

Sears subject heading. OCLC-defined value. The formulation of the subject added entry conforms to the Sears List of Subject Headings.

Subfields

  
ǂa Geographic name

A geographic name. Enter parenthetical qualifying information also in subfield ǂa.

691     Lyme Common, Lyme, N.H.
ǂb Geographic element following geographic name

An additional geographic element following the name in subfield ǂa.
ǂg Miscellaneous information

Data element that is not more appropriately contained in another defined subfield.
ǂv Form subdivision

A specific kind or genre of material defined by the thesaurus being used. Use only when a form subject subdivision is added to a geographic name. Use subfield ǂv also for form terms when they function as indicated above. Use subfield ǂx if the terms function as general subdivisions. A form subdivision in subfield ǂv is generally the last subfield in the field. Repeat subfield ǂv if you use more than one form subdivision.
ǂx General subdivision

A subject subdivision that is not more appropriately contained in subfield ǂv, ǂy or ǂz. Use subfield ǂx only when a general topical subdivision is added to a geographic name.
ǂy Chronological subdivision

A subject subdivision that represents a period of time. Use only when a chronological subject subdivision is added to a geographic name.
ǂz Geographic subdivision

A geographic subject subdivision. Use only when a geographic subject subdivision is added to a main term.
ǂ2 Source of heading or term

A MARC code that identifies the source list from which the heading in a subject added entry was assigned. Use only when the 2nd indicator value is 7. See Subject Heading and Term Source Codes (http://www.loc.gov/standards/sourcelist/subject.html).
ǂ3 Materials specified

For information about subfield ǂ3, see Control Subfields.
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.
ǂ9 Special entry

For information about subfield ǂ9, see Control Subfields.

This page last revised: October 6, 2016

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