663-666 - Complex Name References-General Information
MARC 21 Authority
"Full" documentation refers to the MARC 21 Format for Authority Data that contains detailed descriptions of every data element, along with examples, input conventions and history sections.
"Concise" documentation refers to the MARC 21 Concise Format for Authority Data that contains abridged descriptions of every data element, along with examples.
663 - Complex See Also Reference - Name
666 - General Explanatory Reference - Name
DEFINITION AND SCOPE
Fields 663-666 contain information about unauthorized forms of name headings,
different authorized forms of name headings, and other variants not chosen as the
authorized form when the relationships cannot be adequately conveyed by one or more
simple cross references. For more information about tracings and references, see the
Tracings and References-General Information section.