First indicator - Source of code

#  Library of Congress classification

1  U.S. Department of Defense classification

7  Source specified in subfield $2

Second indicator:

#  Undefined


a  Geographic classification area code (NR)

b  Geographic classification subarea code (R)

d  Populated place name (R)

2  Source of code (NR)

6  Linkage (NR)

8  Field link and sequence number (R)

NOTE:  See MARC 21 Format for Bibliographic Data (052 Geographic Classification) for code definitions not given below.


Field 052 contains a code representing the geographic area and may also contain a code(s) representing the subarea(s) and populated place name covered by an item.  This field provides geographic access to an item at a level of detail not possible through the use of 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.

Field 052 is primarily used for maps.

First indicator - Source of code

#    Library of Congress classification.

Value "#" indicates that the code is derived from the Library of Congress Classification--Class G and expanded Cutter lists for place names.  Cutter numbers for place names in the United States are also published in Geographic Cutters.

1    U.S. Department of Defense classification.

Value "1" indicates that the geographic classification code is from the U.S. Department of Defense classification system.

7    Source specified in subfield $2.

Value "7" indicates that the geographic classification code is taken from a source other than that specified by one of the other defined values and for which an identifying code is given in subfield $2.


$a  Geographic classification area code.

Input the code representing a specific geographic area in subfield $a.  The code consists of four to six numerics derived from the LC Classification Schedule Class G.  Exclude from the code the letter "G" from the classification number.

052 ## 3850

651 #0 Washington (D.C.) $x Maps.

$b  Geographic classification subarea code.

Input in subfield $b a code representing a geographic region, natural feature, or political division within the specific geographic area represented by the code in subfield $a.  The code consists of an alphabetic and one or more numerics or alphanumerics derived from the Library of Congress ClassificationClass G or the expanded Cutter number lists for place names.

052 ## 5783 $b C5

651 #0 Clare (Ireland) $x Maps.

052 ## 3709.32 $b P6

651 #0 Potomac River $x Maps.

052 ## 3884 $b F2:2G4

610 2# George Mason University $x Maps.

Input in separate subfields $b codes representing subareas falling within a main area with the same code.

052 ## 4294 $b 06 $b G5 $b W4

651 #0 Oregon City (Or.) $x Maps.

651 #0 Gladstone (Or.) $x Maps.

651 #0 West Linn (Or.) $x Maps.

052 ## 3884 $b F2:2G4

650 #0 Election districts $z Nova Scotia $z Halifax $x Maps.

650 #0 Election districts $z Nova Scotia $z Dartmouth $x Maps.

Field 052 is repeatable when more than one geographic code, indicating coverage of more than one geographic area, is associated with the record.  Subareas are coded in their respective areas.

052 ## 3800

052 ## 3810

651 #0 New York (State) $x Maps.

651 #0 New Jersey $x Maps.

052 ## 4034 $b R45 $b R8

052 ## 4033 $b F65

651 #0 Richmond (Tex.) $x Maps.

651 #0 Rosenberg (Tex.) $x Maps.

651 #0 Fort Bend County (Tex.) $x Maps.

$d  Populated place name.

Subfield $d contains the 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.

052 0# BK $c Mostar $2 <assigned mcode for the DOD list>

651 #0 Mostar (Bosnia and Hercegovina) $v Maps.

$2  Source of code.

The source of the code to be used in subfield $2 is the Source Codes for Vocabularies, Rules, and Schemes (Classification Scheme Source Codes).

$6  Linkage.

For instructions on use of subfield $6, see field 880.

Content designator history

First indicator:  "0" U.S. Dept. of Defense Classification  [Obsolete, 2002]

Related fields, etc.

043, 6XX

052 Geographic Classification  (MARC 21 Format for Bibliographic Data)

See also:

01X-09X  Numbers and Codes

Variable Data Fields

Section E.  MARC 21 Format for Serials as Applied Within CONSER

CONSER Editing Guide:  Contents