MARC 21 Concise Bibliographic:
Classification and Call Number Fields (05X-08X)
This is an ARCHIVED VERSION of the 2002 electronic
edition of the MARC 21 Concise Formats. Please see
www.loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.
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 2001 edition of the MARC 21 Concise Formats was published and
are included in the 2002 printed edition of the MARC 21 Concise Formats.
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)
- $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.
Indicators
- First - Code source
- # - Library of Congress Classification
- 1 - 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 |
1#$aBK |
052 |
##$a4034$bR4$bR8 |
052 |
##$a4033$bF65 |
052 |
1#$aUS$b51 |
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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 ISO 10646 (or Unicode). 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.
- $c - Alternate G0 or G1 character set (R)
The Intermediate and Final characters of each escape sequence that designates
an alternate G0 or G1 character set used in a record.
Examples
066 |
##$a(N |
066 |
##$b$)1 |
066 |
##$a$1 |
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A classification or call number that is assigned by the National Agricultural
Library.
Indicators
- First - Existence in NAL collection
- 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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