Authority 072 szerkesztése

<p align="right">[[Kezdőlap]] - [[A MARC21 authority formátum]] - [[Authority 01X-09X]]</p>

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== 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: [http://www.loc.gov/standards/sourcelist/subject-category.html 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].


<p align="right">[[Kezdőlap]] - [[A MARC21 authority formátum]] - [[Authority 01X-09X]]</p>