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073 - SUBDIVISION USAGE (NR)
A code specifying the topical or geographic subject terms with which the 1 heading in a subdivision record may be used in a particular thesaurus.
Indicators
- First - Undefined
- # - Undefined
- Second - Undefined
- # - Undefined
Subfield Codes
- $a - Subdivision usage (R)
A category designator code that specifies the category of terms with which the subdivision may be used. - $z - Code source (NR)
A MARC code that identifies the thesaurus used to assign the category designator code.
Code from: MARC Code Lists for Relators Sources Description Conventions - $6 - Linkage (NR) See Control Subfields
- $8 - Field link and sequence number (R) See Control Subfields
Example
073 |
##$aE1$aE2$aE3$aE4$aE6$aE7$aN2$zmesh |

