MARC 21 Concise Bibliographic: Classification and Call Number Fields
(05X-08X)
Fields 050-08X fields contain classification and call numbers related to the
item described in the bibliographic record. Identification of the character sets
used in encoding the bibliographic data is also provided for by a field in this
group.
Information for Translators and Other Users
Items highlighted in
red indicate changes made after the 2000 edition of
the MARC 21 Concise Formats was published and are included in the 2001
printed edition of the MARC 21 Concise Formats.
Items highlighted
in green indicate changes
made to the online format only. These changes will be corrected in the 2002
printed edition of the MARC 21 Concise Formats (Available late 2002).
A classification or call number that is taken from Library of Congress
Classification or LC Classification Additions and Changes. The
brackets that customarily surround alternate class/call numbers are not carried
in the MARC record; they may be generated based on the presence of repeated $a
subfields.
Indicators
- First - Existence in LC collection
Indicates whether the item is in the
LC collections.
- # - No information provided
A call number assigned by an organization
other than LC.
- 0 - Item is in LC
May be used by organizations transcribing from LC
copy on which the call number is neither enclosed within brackets nor
preceded by a Maltese cross.
- 1 - Item is not in LC
May be used by organizations transcribing from
LC copy on which the call number is enclosed within brackets or is preceded
by a Maltese cross. The brackets that customarily surround call numbers for
items not in LC are not carried in the MARC record; they may be generated
for display.
- Second - Source of call number
A value that indicates whether the call
number has been assigned by the Library of Congress or another organization.
- 0 - Assigned by LC
May be used by organizations transcribing from LC
copy.
- 4 - Assigned by agency other than LC
Subfield Codes
- $a - Classification number (R)
- $b - Item number (NR)
Organizations that use the
Cutter-Sanborn Three-Figure Author Table may conform to LC item
number practice by applying Subject Cataloging Manual: Shelflisting
procedures.
- $3 - Materials specified (NR)
The part of the described
materials to which the field applies.
- $6 - Linkage (NR) See Control
Subfields
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
050 |
#4$aNB933.F44$bT6 |
050 |
10$aBJ1533.C4$bL49 |
050 |
00$aJK609$b.M2 |
050 |
00$aZ7164.N3$bL34 no.
9$aZ7165.R42$aHC517.R42 |
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Information added to a bibliographic record by LC that relates to copies,
issues, and/or offprints of the described item that are in its collections.
Indicators
- First - Undefined
- Second - Undefined
Subfield Codes
- $a - Classification number (NR)
- $b - Item number (NR)
- $c - Copy information (NR)
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
051 |
##$aQE75$b.G4$c2d
set. |
051 |
##$aMicrofilm$b3741
HV$cMicrofilm. |
051 |
##$aRC310$b.W59$cOffprint.
Cover dated 1947. |
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A code for the main geographic area and any applicable subareas associated
with the item. The geographic classification code is derived from Library of
Congress Classification Class G and expanded Cutter number lists for place
names that are maintained by the Library of Congress.
Indicators
- First - Code source
- # - Library of Congress Classification
- 0 - U.S. Dept. of Defense Classification
- 7 - Source specified in subfield $2
- Second - Undefined
Subfield Codes
- $a - Geographic classification area code (NR)
A four- to
six-character numeric code for the main geographic area associated with the
item. The code is derived from the LC class G schedule by dropping the letter
G.
- $b - Geographic classification subarea code (R)
An
alphanumeric code, assigned from expanded Cutter lists, that represents a
subarea of the geographic area coded in subfield $a. Cutter numbers for places
in the U.S. are published in Geographic Cutters that is maintained by
the Library of Congress.
- $d - Populated place name (R)
May contain the name of
the geographic area
- $2 - Code source (NR)
- $6 - Linkage (NR) See Control
Subfields
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
052 |
##$a3810 |
052 |
##$a4034$bR4$bR8 |
052 |
##$a4033$bF65 |
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A classification or call number that is assigned by the National Library of
Canada or a contributing Canadian library.
Indicators
- First - Existence in NLC collection
A value that indicates whether the
item is in the NLC collections.
- # - Information not provided
A call/class number assigned by an
organization other than NLC.
- Second - Type, completeness, source of class/call number
A value that
indicates whether the number is a complete or incomplete LC number assigned by
NLC or a contributing library, an LC-based number assigned by NLC or a
contributing library, or a class/call number assigned by NLC or a contributing
library from a classification scheme other than the LC, NLM (field 060),
Universal Decimal (field 080), or Dewey (field 082) schemes.
- 0 - LC-based call number assigned by NLC
- 1 - Complete LC class number assigned by NLC
- 2 - Incomplete LC class number assigned by NLC
- 3 - LC-based call number assigned by the contributing library
- 4 - Complete LC class number assigned by the contributing
library
- 5 - Incomplete LC class number assigned by the contributing
library
- 6 - Other call number assigned by NLC
- 7 - Other class number assigned by NLC
- 8 - Other call number assigned by the contributing library
- 9 - Other class number assigned by the contributing
library
Subfield Codes
Examples
055 |
#5$aHT154 |
055 |
01$aM1679.18 |
055 |
12$aTS800 |
055 |
00$aJK609$bM2 |
055 |
01$aM1679.18 |
055 |
#3$aDS598
S7$b.B34 |
055 |
18$aKF385
ZB5$bC6$2kfmod |
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A classification or call number that is taken from National Library of
Medicine Classification schedules QS-QZ and W or from Library of
Congress Classification schedules as used by NLM for peripheral and related
topics.
Indicators
- First - Existence in NLM collection
- # - No information provided
A call number assigned by an organization
other than NLM.
- Second - Source of call number
- 4 - Assigned by agency other than NLM
Subfield Codes
- $a - Classification number (R)
- $b - Item number (NR)
NLM uses the Cutter-Sanborn
Three-Figure Author Table and a special numbering scheme in classes W1
and W3 to create item numbers.
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
060 |
#4$aW1$bJO706M |
060 |
00$aWM 270$bMP16 no.
4 1969 |
060 |
10$aWA 540 AA1$bB8p
1972 |
060 |
00$aW3$bNU36 no. 28
1993 |
060 |
00$aW1$bDE111AL v.4
pt.A 1990$aTP 248.2 D293b 1990 |
060 |
00$aKK1110$aWD
320 |
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Information added to a bibliographic record by NLM that relates to second
copies or sets of the described item that are in its collections.
Indicators
- First - Undefined
- Second - Undefined
Subfield Codes
- $a - Classification number (R)
- $b - Item number (NR)
- $c - Copy information (NR)
- $8 - Field link and sequence number (R) See Control
Subfields
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Information that indicates that the character set present in a record is
other than the default MARC Latin sets (ASCII and ANSEL). A detailed description
of the standard escape sequences used in MARC records is provided in MARC 21 Specifications for
Record Structure, Character Sets, and Exchange Media .
Indicators
- First - Undefined
- Second - Undefined
Subfield Codes
- $a - Primary G0 character set (NR)
The Intermediate and
Final characters of the escape sequence that designates and invokes the
default G0 character set.
- $b - Primary G1 character set (NR)
The Intermediate and
Final characters of the escape sequence that designates and invokes the
default G1 character set.
- $c - Alternate G0 or G1 character set (R)
The
Intermediate and Final characters of each escape sequence that designates an
alternate G0 or G1 character set used in a record.
Examples
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A classification or call number that is assigned by the National Agricultural
Library.
Indicators
- First - Existence in NAL collection
A value that indicates whether the
item is contained in the NAL collections.
- Second - Undefined
Subfield Codes
- $a - Classification number (R)
- $b - Item number (NR)
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
070 |
0#$a105.2$bW122 |
070 |
1#$aHD281.I5$bno.
5 |
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Information added to a bibliographic record by NAL that relates to second
copies or sets of the described item that are in its collections.
Indicators
- First - Undefined
- Second - Undefined
Subfield Codes
- $a - Classification number (R)
- $b - Item number (NR)
- $c - Copy information (NR)
- $8 - Field link and sequence number (R) See Control
Subfields
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A code for the subject category that is associated with the described item.
Indicators
- First - Undefined
- Second - Code source
- 0 - NAL subject category code list
The subject category code is taken
from AGRIS: Subject Categories that is maintained by NAL.
- 7 - Code source specified in subfield $2
The MARC code for the source
is contained in subfield $2.
Subfield Codes
- $a - Subject category code (NR)
The code for the broad
subject associated with the item.
- $x - Subject category code subdivision (R)
The level of
specificity within the broader subject coded in subfield $a.
- $2 - Code source (NR)
A MARC code that identifies the
thesaurus used to assign the subject category code when the second indicator
position contains value 7. Code from: MARC Code Lists for Relators,
Sources, Description Conventions .
- $6 - Linkage (NR) See Control
Subfields
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
072 |
#0$aK800 |
072 |
#7$aE5$x.510$2mesh |
072 |
#7$a17$x02.1$2cosatisc |
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A number assigned by the U.S. Government Printing Office to publications to
manage their distribution within its Depository Library System.
Indicators
- First - Undefined
- Second - Undefined
Subfield Codes
- $a - GPO item number (NR)
The number is assigned from
List of Classes of United States Government Publications Available for
Selection by Depository Libraries that is maintained by GPO. GPO Item
No. : may be generated for display.
- $z - Canceled/invalid GPO item number (R)
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
074 |
##$a334-C-1 |
074 |
##$a277-A-2 (MF) |
074 |
##$a1022-A$z1012-A |
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A number taken from the Universal Decimal Classification scheme.
Indicators
- First - Undefined
- Second - Undefined
Subfield Code
- $a - Universal Decimal Classification number (NR)
- $b - Item number (NR)
- $x - Common auxiliary subdivision (R)
A number that
qualifies the concept represented by the main number.
- $2 - Edition identifier (NR)
- $6 - Linkage (NR) See Control
Subfields
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
080 |
##$a971.1/.2 |
080 |
##$a631.321:631.411.3 |
080 |
##$a821.113.1$x(494)$2[edition
information] |
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The classification number is taken from Dewey Decimal
Classification, Abridged Dewey Decimal Classification, and/or
DC&: Dewey Decimal Classification Additions, Notes and Decisions.
Indicators
- First - Type of edition
- Second - Source of classification number
A
value that indicates whether the classification
number has been assigned by the Library of Congress or another organization
- # - No information provided
- 0 - Assigned by LC
May be used by organizations transcribing from LC
copy.
- 4 - Assigned by agency other than LC
Subfield Codes
- $a - Classification number (R)
- $b - Item number (NR)
- $2 - Edition number (NR)
- $6 - Linkage (NR) See Control
Subfields
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
082 |
00$a697/.78$220 |
082 |
10$a914.3$212 |
082 |
00$a343.7306/8$a347.30368$220 |
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A classification number from a scheme not covered
by one of the other number fields. The field should not be used for
classification numbers assigned from a source for which a subfield $2 source of
number code would not be assigned.
Indicators
- First - Undefined
- Second - Undefined
Subfield Codes
Examples
084 |
##$a016$a014$a018$a122$2frbnpnav |
084 |
##$aKB112.554$bU62
1980$2laclaw |
084 |
##$a8501(043)$2rueskl |
084 |
##$aCA2 PQ C07
81P52$2cacodoc |
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The classification number assigned to documents by designated agencies in
countries that have a government documents classification program.
Indicators
- First - Number source
A value that indicates the source of the
classification number.
- # - Source specified in subfield $2
A classification number other
than the U.S. or Canadian scheme.
- 0 - Superintendent of Documents Classification System
Assigned by the
U.S Government Printing Office. Supt. of Docs. no.: may be
generated for display.
- 1 - Government of Canada Publications: Outline of Classification
- Second - Undefined
Subfield Codes
- $a - Classification number (NR)
- $z - Canceled/invalid classification number (R)
- $2 - Number source (NR)
A MARC code that identifies the
government document classification scheme used to assign the number when
the first indicator position contains value #. The
code may be used to generate a display constant to identify the source of the
classification number. Code from: MARC Code Lists for Relators,
Sources, Description Conventions .
- $6 - Linkage (NR) See Control
Subfields
- $8 - Field link and sequence number (R) See Control
Subfields
Examples
086 |
##$aHEU/G74.3C49$2ordocs |
086 |
0#$aA13.28:F 61/2/981 Glacier |
086 |
0#$aHE 20.6209:13/45 |
086 |
0#$aITC 1.12:TA-503 (A)-18 AND
332-279 |
086 |
0#$aA 1.1:$zA
1.1/3:984 |
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A report number that is not a Standard Technical Report Number (field 027)
Indicators
- First - Undefined
- Second - Undefined
Subfield Codes
Examples
088 |
##$aSTRATLAB-71-98 |
088 |
##$aNASA-RP-1124-REV-3$zNASA-RP-1124-REV-2 |
088 |
##$zNASA-TN-D-8008 |
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