Heading Usage in Authority Records

Heading Usage in Authority Records (Introduction)

The MARC 21 Format for Authority Data identifies three categories of heading usage in records: main or added entry (008/14 ); subject added entry (008/15 ); and series added entry (008/16 ). Only established headings may be used as the lead element of access points in bibliographic records. Name , name/title , and uniform title established headings may be appropriately used as any one, two, or three of the 008/14-16 usage categories. Topical term and extended subject headings may be used only as subject added entries. Subdivision headings may be used only in extended subject heading added entries.