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072  Subject Category Code (R)

Input Standards

Optional/Optional
1st Indicator  Undefined
blank character Undefined
2nd Indicator  Code source
0 NAL subject category code list
7 Source specified in subfield ǂ2
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
ǂa Subject category code (NR) Mandatory/Mandatory
ǂx Subject category code subdivision (R) Required if applicable/Required if applicable
ǂ2 Source (NR) Required if applicable/Required if applicable
ǂ8 Field link and sequence number (R) Optional/Optional

Definition

Codes that identify subject categories. Subject category codes are taken from controlled lists of codes. You may repeat 072 for multiple subject category codes.

1st Indicator

Undefined. The first indicator is undefined and contains a blank ( blank character ).

blank character

Undefined

2nd indicator

Code source. Identifies the subject category code.

 
0

NAL subject category code list. Indicates that the source of the subject matter category code is the U.S. National Agricultural Library document AGRICOLA Subject Category Codes (http://agricola.nal.usda.gov/help/categorycodes.html).

072   0 K800
 
7

Source specified in subfield ǂ2. Indicates that the code source is specified in subfield ǂ2.

072   7 E5 ǂx .510 ǂ2 mesh

Subfields

 
ǂa Subject category code

The subject category code.

072   0 F821
ǂx Subject category code subdivision

A subdivision of the code in subfield ǂa.

072   7 Z1 ǂx .630 ǂ2 mesh
ǂ2 Source

The source of the subject category. Use subfield ǂ2 if the 2nd indicator value is 7. See MARC Subject Category Code Source Codes (http://www.loc.gov/standards/sourcelist/subject-category.html).

072   7 17 ǂx 02.1 ǂ2 cosatisc
ǂ8 Field link and sequence number

For information about subfield ǂ8, see Control Subfields.

This page last revised: July 26, 2016