052 - Geographic Classification (R)
MARC 21 Bibliographic - Full
October 2002
First Indicator
Code source
# - Library of Congress Classification
1 - U.S. Dept. of Defense Classification
7 - Source specified in subfield $2
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Second Indicator
Undefined
# - Undefined
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Subfield Codes
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$a - Geographic classification area code (NR)
$b - Geographic classification subarea code (R)
$d - Populated place name (R)
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$2 - Code source (NR)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)
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FIELD DEFINITION AND SCOPE
Geographic classification code that represents the geographic area and, if applicable,
the geographic subarea and populated place name covered by an item.
Code can provide more precise geographic access than the codes contained in field 043
(Geographic Area Code). Each main geographic area code and any related subarea codes
associated with the item are contained in a separate 052 field. Subfield $d
(Populated Place Name) may contain the name of the geographic area.
GUIDELINES FOR APPLYING CONTENT DESIGNATORS
■ INDICATORS
First Indicator - Code source Code source in subfield $a and information in the other subfields.
# - Library of Congress Classification Geographic classification code is derived from the Library of Congress
Classification-Class G and expanded Cutter number lists for place
names. The geographic classification code contains a four to six-character
numeric code that consists of the appropriate classification number from the
range G3190-G9980 by dropping the letter G. Cutter numbers for place names in
the United States are also published in Geographic Cutters. The
Library of Congress maintains the Library of Congress Classification,
Geographic Cutters, and the Cutter number lists.
1 - U.S. Dept. of Defense Classification Code is from the U.S. Department of Defense Classification system.
7 - Source specified in subfield $2 Number is taken from a classification system other than that specified by one
of the other defined indicator values and for which an identifying source code
is given in subfield $2.
Second Indicator - Undefined Undefined and contains a blank (#).
■ SUBFIELD CODES
$a - Geographic classification area code Numeric or alphanumeric code that represents the main geographic area covered by an item.
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| 651 |
#0$aNew York (State)$vMaps. |
| 651 |
#0$aNew Jersey$vMaps. |
| 052 |
##$a3800
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| 052 |
##$a3810
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| 651 |
#0$aBosnia and Hercegovina$vMaps. |
| 052 |
1#$aBK
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$b - Geographic classification subarea code Geographic subarea code related to the geographic area coded in subfield $a.
Each geographic subarea code is contained in a separate subfield $b.
Subfield $b may be repeated for subareas falling within a main area
with the same code.
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| 651 |
#0$aRichmond (Tex.)$vMaps. |
| 651 |
#0$aRosenberg (Tex.)$vMaps. |
| 651 |
#0$aFort Bend County (Tex.)$vMaps. |
| 052 |
##$a4034$bR4$bR8
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| 052 |
##$a4033$bF65
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| 651 |
#0$aVirginia$xMaps. |
| 052 |
1#$aUS$b51
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$d - Populated place name Approved form of name for a populated place.
In the case of a name established by the U.S. Board on Geographic Names, if a
short form of the name has been approved, that form is used in preference to the
full form of name.
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| 651 |
#0$aMostar (Bosnia and Hercegovina)$vMaps. |
| 052 |
1#$aBK$dMostar
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$8 - Field link and sequence number
INPUT CONVENTIONS
Punctuation - Period that usually precedes a Cutter number is omitted in subfield $b. Field
052 does not end with a period.
Capitalization - Alphabetic characters are recorded in uppercase.
CONTENT DESIGNATOR HISTORY
Indicator 1 - Code source [NEW, 2000]
Records created prior to 2000 may contain a code # meaning undefined.
0 - U.S. Dept. of Defense Classification [OBSOLETE, 2002]
First indicator value 0 (U.S. Dept. of Defense Classification) was made obsolete.
Value 1 was defined as U.S. Dept. of Defense Classification to replace it.
$c - Subject (MP) [OBSOLETE]
Subfield $c was made obsolete in the maps specifications in 1980. Subject
content descriptors are contained in the 6XX fields.