072 Subject Category Code (R) (Variable Data Field)
Field 072 contains a code for the subject category that is associated with the item. Field 072 is repeated for multiple subject category codes.
The National level record requirement for this field is Optional.
Field 072 is repeatable .
Guidelines for applying content designators:
For indicator and subfield code definitions and examples, National-level (NLR) and Minimal-level (MLR) record requirements , and designator repeatability , see table below:
| Position | Description |
NLR |
MLR |
Repeatability |
| Field 072 | Subject Category Code |
O |
O |
R |
| Indicator: | ||||
| First | Undefined; contains a blank |
M |
||
| Second | Code source |
M |
||
| 0 | National Agricultural Library subject category code list |
A |
||
| 7 | Code source specified in subfield $2 |
A |
||
| Subfield code: | ||||
| $a | Subject category code |
M |
O |
NR |
| $x | Subject category code subdivision |
A |
O |
R |
| $2 | Code source |
A |
O |
NR |
| $6 | Linkage |
A |
O |
NR |
| $8 | Field link and sequence number |
O |
O |
R |
Second Indicator - Code
source (BK SE):
The definition of the second indicator
position in 1981 broadened the scope
of this field to include codes taken from any subject category code list.
Prior to that time, the field was used only for National Agricultural Library
codes and the second indicator contained a # (blank) meaning undefined.
Related MARC fields or documents:
880 Alternate Graphic Representation
AGRICOLA Subject Category Codes with Scope Notes
MARC Code List for Relators, Sources, Description Conventions
See also:
