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072  Subject Category Code (R)

       

Input Standards

Optional/Optional
1st Indicator  Undefined
blank character  Undefined
2nd Indicator  Code source
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




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.
 
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 Code Scope Notes ( http://permanent.access.gpo.gov/Cheddar%20Cheese%20Prices/cheddar/www.agnic.org/cc/index.htm).
072    K800
 
7 Source specified in subfield ‡2 . Indicates that the code source is specified in subfield ‡2 .
072    7 E5 ‡x .510 ‡2 mesh

Subfields

 
‡a Subject category code   The subject category code.
‡x Subject category code subdivision   A subdivision of the code in subfield ‡a .
‡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

Printing

Field 072 does not print.

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