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Concise Formats - 2008 Archive >> Classification >> 76X

Number Building Fields (76X)

This is an ARCHIVED VERSION of the 2008 electronic edition of the MARC 21 Concise Formats. Please see loc.gov/marc/concise/ for the most up-to-date version of the electronic MARC 21 Concise Formats.

Number Building Fields provide instructions for building onto classification numbers from sources within the schedule and tables of the scheme identified in field 084 (Classification Scheme and Edition). Such fields are highly structured, and many are intended to assist the classifier in constructing classification numbers. The information in these fields is not written in a form adequate for public user display.

Footnotes containing instructions that apply to several classification numbers are converted to the appropriate 6XX or 76X field.