2XX-3XX Complex Subject References (Variable Data Field)
Definition and scope:
Fields 260 and 360 are used to record information about unauthorized forms of subject headings, different authorized forms of subject headings, and other variants not chosen as the authorized form when the relationships cannot be adequately conveyed by one or more simple cross references.
The see reference note fields (260, 664 , and 666 ) are used in reference records to lead from an unestablished heading to established headings. The see also reference note fields (360, 663 , and 665 ) are used to lead from an established heading to other established headings.
Cross reference displays generated from the reference note fields are complex cross references. In a complex cross reference display, the content of the 1XX field of a record is the heading referred from, and, following a reference instruction phrase, the reference note field contains the heading(s) referred to. In fields 260 and 360, the complete reference instruction may be a combination of a phrase implicitly associated with the field tag and explicit text in subfield $i (Explanatory text).
For more information about references and tracings, see:
Tracing and Reference Fields - General Information
(Tracing fields, reference fields, simple and complex cross references including examples, input conventions, etc.)
Specific field information:
For information on content designators (indicator and subfield code definitions and examples), National level requirements , field and subfield repeatability , and input conventions for any of the 2XX-3XX fields, select from the list below:
260 Complex See Reference - Subject (R)
360 Complex See Also Reference - Subject (R)
See also:
Tracing and Reference Fields - General Information
