First Indicator | Second Indicator |
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Undefined # - Undefined |
Undefined # - Undefined |
Subfield Codes | |
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Tracing for a geographic subdivision see also from reference.
Used in an established heading or established heading and subdivision record to trace a see also from reference from an authorized geographic subdivision to a related established heading.
Most of the content designators defined for field 581 are the same as those defined for field 181 (Heading-Geographic Subdivision), field 481 (See From Tracing-Geographic Subdivision), and field 781 (Subdivision Heading Linking Entry-Geographic Subdivision). Description, guidelines, and input conventions for shared content designators are given in the X81 Geographic Subdivisions-General Information section.
Guidelines for applying the subfield $w (Control subfield), subfield $i (Relationship information), and subfield $4 (Relationship) in field 581 are given in the Tracings and References-General Information section.