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072  Subject Category Code (R)

Input Standards

1st Indicator  Undefined
blank character Undefined
2nd Indicator  Code source
0 NAL subject category code list
7 Source specified in subfield ‡2
Subfields (R=Repeatable  NR=Nonrepeatable) Input Standards
‡a Subject category code (NR) Mandatory/Mandatory
‡x Subject category code subdivision (R) Required if applicable/Required if applicable
‡2 Source (NR) Required if applicable/Required if applicable


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


2nd indicator

Code source. Identifies the subject category code.


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

Source specified in subfield ‡2. Indicates that the code source is specified in subfield ‡2.

072   7 E5 ‡x .510 ‡2 mesh


‡a Subject category code

The subject category code.

072   0 F821
‡x Subject category code subdivision

A subdivision of the code in subfield ‡a.

072   7 Z1 ‡x .630 ‡2 mesh
‡2 Source

The source of the subject category. Use subfield ‡2 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 ‡x 02.1 ‡2 cosatisc

This page last revised: September 2, 2015