581 See Also From Tracing - Geographic Subdivision (R) (Variable Data Field)

Field definition and scope:

Field 581 contains a tracing for a geographic subdivision see also from reference. It is used in a subdivision record to trace a see also from reference from an authorized geographic subdivision to a related authorized heading.

The National level record requirement for this field is Mandatory if applicable.

Field 581 is repeatable .

Guidelines for applying content designators:

The content designators identify the subelements occurring in geographic subdivision headings constructed according to generally accepted thesaurus-building conventions (e.g., Library of Congress Subject Headings, Medical Subject Headings).

A geographic subdivision is used as a subdivision portion of an extended subject or index term access field in bibliographic records.

A geographic name that is used as the lead element of an established heading record is contained in a 151 (Heading - Geographic Name) field.

For indicator and subfield code definitions and examples, National level (NLR) record requirements , and designator repeatability , see table below:

Input conventions:

Punctuation

Spacing

Display constant for X81 fields

Display constants for cross references

Content designator history:

Subfields $v - Form subdivision [redefined]

$0 - Record control number [new]

$3 - Authority record control number [obsolete, 1997] [CAN/MARC only]

In USMARC, from 1993 to 1995, subfield $v was defined as Record control number in the 7XX Heading Linking Entry fields. When subfield $v was adapted for form subdivisions in MARC bibliographic and authority heading fields in 1995, subfield $v was redefined as Form subdivision. In 1997, subfield $0 was added as Record control number in 5XX and 7XX fields.

Subfield $w/0 - Print constant code [redefined, 1997] [CAN/MARC only]: The following values were redefined: g (Full name), h (Real name), and i (Real name (reputedly)). The following values were made obsolete: j (Name originally), k (Name in religion), l (Secular name), m (Stage name of), o (Variant name), p (Abbreviated name), q (Official name), r (Broader term), s (Narrower term), x (Print constant generated from tag value), and z (Text carried in subfield $i).

Subfield $w/2 - Earlier form of heading

x - Tracing is not the form of heading established under earlier cataloguing rules [obsolete, 1997] [CAN/MARC only]

Subfield $w/3 - Reference display

e - Note only generated from the tracing [obsolete, 1997] [CAN/MARC only]

i - Invisible see from reference [obsolete, 1997] [CAN/MARC only]

x - Reference is generated from the tracing [obsolete, 1997] [CAN/MARC only]

Subfield $w/4 - Formerly established heading code [obsolete, 1997] [CAN/MARC only]: The following values were defined: d (Formerly accepted heading replaced by the heading in the 1XX field), s (Formerly accepted heading replaced by other headings, one of which is in the 1XX field), and x (Not a formerly accepted heading).

LC guidelines for usage:

581 See Also From Tracing - Geographic Subdivision

Tracing and Reference Fields [General Information]

Related MARC fields or documents:

X81 Geographic Subdivisions - General Information

Tracing and Reference Fields - General Information

See also:

5XX See Also From Tracings

Variable Data Fields