33x
Bibliographic record
- The 33x should reflect all of the formats of the manifestation described in the bibliographic record
- Bibliographic record should NOT have 33x fields for NET or other holdings with different formats
Holdings record
For all holdings, regardless of format
- Do not copy 33x into holdings
007
NB: Not every record needs the 007 field, but for those records needing and 007 field, the practice has changed
Bibliographic record
- 007 will NOT be stripped from Harvard’s bibliographic records upon import to Alma
- 007 (if necessary) should reflect only the format(s) of the manifestation described in the bibliographic record
- 007 fields should not be added to the bibliographic record to represent holdings for formats not described in the bibliographic record.
Holdings record
When the format(s) described in the bibliographic record matches the format(s) of the holdings record(s)
- Do not copy 007 field to holdings record(s)
When the format(s) represented by the holdings record(s) is/are not reflected in the bibliographic record
- Create appropriate 007 field(s) in each holdings record
Legacy records
- There is no need to remove extraneous 33x or 007 fields from legacy holdings records, although it does no harm to do so.
As of June 11, 2018, rev. August 14, 2018; final rev. March 18, 2021.