651 - Subject Added Entry-Geographic Name (R)
MARC 21 Community Information - Full
October 2007
First Indicator Undefined # - Undefined
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Second Indicator 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
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Subfield Codes
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Name portion $a - Geographic name (NR)
Subject subdivision portion $v - Form subdivision (R) $x - General subdivision (R) $y - Chronological subdivision (R) $z - Geographic subdivision (R) |
Control subfields
$0 - Authority record control number (R)
$2 - Source of heading or term (NR) $3 - Materials specified (NR) $6 - Linkage (NR) $8 - Field link and sequence number (R)
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FIELD DEFINITION AND SCOPE
Geographic name used as a subject added entry.
Subject added entries are assigned to a community information record to provide access
according to generally accepted cataloging and thesaurus-building rules (e.g.,
Library of Congress Subject Headings (LCSH), Medical Subject
Headings (MeSH)). Field 651 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).
Jurisdiction names used alone or followed by subject subdivisions are contained in 651
fields. A corporate name, a title of a work, and/or a city section name entered under
the name of a jurisdiction are contained in a 610 corporate name field. A name of a
jurisdiction that represents an ecclesiastical entity is contained in a 610 field.
GUIDELINES FOR APPLYING CONTENT DESIGNATORS
■ INDICATORS
First Indicator - Undefined Undefined and contains a blank (#).
Second Indicator - Thesaurus Name and/or subject heading system or thesaurus used in constructing the subject
heading.
0 - Library of Congress Subject Headings Subject added entry conforms to and is appropriate for use in the
Library
of Congress Subject Headings (LCSH).
LCSH is maintained by the Library of Congress.Conforms to
LCSH is defined as:
- geographic headings (or geographic headings and subdivisions) found in
the LC authority files (including name authorities for non-natural
features), or in the latest edition of LCSH, including the latest
microfiche, printed version, CD-ROM, and supplements;
- geographic headings for non-natural features constructed following
AACR 2;
- geographic headings found in the LC authority files, the latest edition
of LCSH, or constructed following AACR 2 (for non-natural
features only) to which is added a free-floating or regular subdivision
according to the rules stated in the Subject Cataloging Manual: Subject
Headings, particularly subdivisions listed in the pattern lists, and
subdivisions formulated and applied according to the rules in the
manual.
1 - LC subject headings for children's literature Subject added entry conforms to the "AC Subject Headings" section of
Library of Congress Subject Headingsand is appropriate for use in
the LC Annotated Card Program.LCSH is maintained by the Library of Congress.
2 - Medical Subject Headings Subject added entry conforms to and is appropriate for use in Medical
Subject Headings (MeSH) and/or the NLMedicine name authority files.MeSH is maintained by the National Library of Medicine.
3 - National Agricultural Library subject authority file Subject added entry conforms to the U.S. National Agricultural Library subject
authority file.Requires that the field is appropriate for NAL subject heading purposes.
4 - Source not specified Subject added entry conforms to a controlled list but the source cannot be
specified by one of the subject heading system/thesauri covered by second
indicator values 0-3, 5-6 or by a code for a specific subject heading list in
subfield $2.Field 653 (Index Term-Uncontrolled) is used to record terms that are not
derived from controlled subject heading lists.
5 - Canadian Subject Headings Subject added entry conforms to and is appropriate for use in Canadian
Subject Headings that is maintained by the Library and Archives
Canada.
6 - Répertoire de vedettes-matière Subject added entry conforms to the Répertoire de vedettes-matière
that is maintained by the Bibliothèque l'Université Laval.
7 - Source specified in subfield $2
■ SUBFIELD CODES
$a - Geographic name Topical subject or a geographic name used as an entry element for a topical term.
Parenthetical qualifying information is not separately subfield coded.
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651 |
#0$aAntietam National Battlefield (Md.)
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651 |
#0$aKing Ranch (Tex.)
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651 |
#0$aKenwood (Chicago, Ill.)
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651 |
#0$aClear Lake (Iowa : Lake)
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$v - Form subdivision Form subdivision that designates a specific kind or genre of material as defined
by the thesaurus being used. Subfield $v is appropriate only when a
form subject subdivision is added to a geographic name.
$x - General subdivision Subject subdivision that is not more appropriately contained in subfield
$v (Form subdivision), subfield $y (Chronological
subdivision), or subfield $z (Geographic subdivision). Subfield
$x is appropriate only when a general topical subdivision is added to a
geographic name.
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651 |
#0$aTexas$xOfficials and employees.
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$y - Chronological subdivision Subject subdivision that represents a period of time. Subfield $y is
appropriate only when a chronological subject subdivision is added to a geographic
name.
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651 |
#0$aNew York (N.Y.)$xHistory$y1951-
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$z - Geographic subdivision Geographic subject subdivision. Subfield $z is appropriate only when a
geographic subject subdivision is added to a geographic name.
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651 |
#0$aPittsburgh (Pa.)$xCommerce$zPennsylvania$zPhiladelphia.
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$0 - Authority record control number
$2 - Source of heading or term
Used only when the second indicator position contains value 7 (Source specified in
subfield $2).
$3 - Materials specified Part of the described materials to which the field applies.
$8 - Field link and sequence number
INPUT CONVENTIONS
Ambiguous Headings - See Appendix D.
Punctuation - Field 651 ends with a mark of punctuation or a closing parenthesis. If the final
subfield is subfield $2, the mark of punctuation or closing parentheses
precedes the $2 subfield.
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651 |
#0$aChicago (Ill.)$xPolitics and government$y1951-
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651 |
#7$aNew York (N.Y.)$2ericd
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A geographic name followed by a subject subdivision does not end with a mark of
punctuation unless the name ends with an abbreviation, initial/letter, or open date.
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651 |
#0$aSt. Louis (Mo.)$xPolitics and government.
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Spacing - No spaces are used in initialisms, acronyms, or abbreviations. One space is used between
preceding and succeeding initials if an abbreviation consists of more than a single
letter.
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651 |
#0$aWashington (D.C.)
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651 |
#0$aVienna (W. Va.)
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Display Constant - The dash ( - ) that precedes a subject subdivision in an extended subject heading is not
carried in the machine-readable record. It may be system generated as a display constant
associated with the content of subfields $v, $x, $y,
and $z.
Initial Articles - Initial articles (e.g., Le) occurring at the beginning of geographic subject added entry
fields are usually omitted in most languages (except when the intent is to file on the
article). Any diacritics and/or special characters occurring at the beginning of fields
are retained. Note that such characters are usually ignored for purposes of sorting and
filing.
CONTENT DESIGNATOR HISTORY
$0 - Authority record control number [NEW, 2007]