04. CBS MARC 21 fields defined in the authority format Last updated Save as PDF 01. Introduction02. Leader, fields 001, 003, 005, 008 – authority format03. Fields 01X-09X – Numbers and Codes – authority format04. Fields 1XX – Headings – authority format05. Fields 20X-29X / 260 – Complex Subject References – authority format06. Fields 3XX – Headings / 360 – Complex Subject References – authority format07. Fields 4XX – See From Tracings – authority format08. Fields 5XX – See Also From Tracings – authority format09. Fields 6XX / 64X – Series Treatment / 663-666 – Complex Name References / 667-68X – Notes – authority format10. Fields 7XX – Heading Linking Entries – authority format11. Fields 8XX – Other Variable Fields – authority format12. Fields 9XX – authority format
