Authority 072
First Indicator Undefined
- - Undefined
Second Indicator Code source
- - No information provided
0 - NAL subject category code list 7 - Source specified in subfield $2
Subfield Codes
$a - Subject category code (NR)
$x - Subject category code subdivision (R)
$2 - Code source (NR)
$6 - Linkage (NR)
$8 - Field link and sequence number (R)
FIELD DEFINITION AND SCOPE
Code for the subject category that is associated with the 1XX field in an established heading record or a node label record.
Code indicates the relative position of the heading in a particular hierarchical arrangement in the thesaurus specified by the value in the second indicator position or in subfield $2 (Code source). Field 072 is repeated for each location of the heading in a specific thesaurus and for multiple subject category codes when a heading is common to different thesauri. GUIDELINES FOR APPLYING CONTENT DESIGNATORS ■ INDICATORS First Indicator - Undefined Undefined and contains a blank (#). Second Indicator - Code source Source of the subject category code.
- - No information provided
Source of the subject category code is the same as the subject heading system/thesaurus identified in 008/11 (Subject heading system/thesaurus).
008/11 c [code indicating MeSH] 150 ##$aAtrophy 072 ##$aC23.$x739.$x102 0 - NAL subject category code list Source of the subject category code is AGRICOLA Subject Category Codes with Scope Notes that is maintained by NAL.
008/11 d [code indicating NAL] 150 ##$aContamination and toxicology 072 #0$aQ200 7 - Source specified in subfield $2 ■ SUBFIELD CODES $a - Subject category code Code for the broad subject category to which the heading belongs in a hierarchically-arranged thesaurus.
008/11 c [code indicating MeSH] 150 ##$aLibraries, Hospital 072 ##$aL1.$x346.$x596.$x463 072 ##$aN2.$x278.$x354.$x560 072 ##$aN4.$x452.$x442.$x468
008/09 e [node label record] 008/11 c [code indicating MeSH] 150 ##$aNeoplastic Processes 072 ##$aC4.$x697 $x - Subject category code subdivision Level of specificity within the broader category coded in subfield $a.
008/11 c [code indicating MeSH] 151 ##$aLibya 072 ##$aZ1.$x58.$x266.$x513 072 ##$aZ1.$x586 $2 - Code source MARC code that identifies the thesaurus used to assign the subject category code when the second indicator position of this field contains value 7. Code from: Subject Category Code Source Codes. $6 - Linkage See description of this subfield in Appendix A: Control Subfields. $8 - Field link and sequence number See description of this subfield in Appendix A: Control Subfields.