Fixed Fields

043 Field (Optional)

053 Field

1XX Field

4XX and 5XX Cross References - General Overview

Simple 4XX and 5XX Cross References

Simple 4XX 'See' Cross References

Simple 5XX 'See Also' Cross References

Earlier/Later References

670 Field (Sources Found)

675 Field (Sources Not Found)

663/664 Fields (Complex See Also and See References)

667 Field (Nonpublic General Note)

7XX Heading Linking Entries

781 Subdivision Linking Entry - Geographic Subdivision (Optional)

Provisional Authority Records

Preliminary Authority Records

Communications with the Library of Congress

See also:

NACO Participants' Manual:  Contents