DCM Z1: 7XX Heading Linking Entries - General Information
NOTE: This section does not apply to the 781 field used in 151 name authority records to provide geographic subdivision information. See DCM Z1, 781 section, for instructions for that field.
General:
NACO members who have approval from the Policy, Training, and Cooperative Cataloging Programs Division may add or edit a 7XX linking entry field in an authority record. Other NACO contributors should not add, modify, or delete a 7XX linking entry field.
The use of an established heading linking entry 7XX field in a NAR or SAR is limited to recording the authorized access point from a national bibliography or in a separate national authority file. The purpose of including a 7XX is usually to allow a national bibliographic agency to retain its own authorized access point in its own bibliographic records, while still contributing name authority records to the LC/NAF.
The form of heading in a 7XX field may match the 1XX form or a 4XX form in the same authority record. This is appropriate when the 7XX field form represents a form found in a different authority file than the LC/NAF.
Example:
130 #0 $a 123 Takalani Sesame (Series)
730 #7 $a 123 Takalani Sesame (Series) $2 sanb
The source of the heading in the 7XX field may be specified using either second indicator value 7 with subfield $2 or a second indicator value that specifies the source. Authority records containing 7XX fields from Library and Archives Canada may use either method.
7XX fields used during the US RDA Test:
During the 2010 US RDA Test, 7XX fields with second indicator value 4 were added to NARs and SARs to document RDA authorized access points used in test bibliographic records. These fields have all been deleted in the authority records.
For more information on DCM Z1 Instructions, select: