Q: Our library has holdings in multiple formats for a single publication. How should we represent these holdings in our LHRs in OCLC?
A: According to the current cataloging standards, each holding should be attached to a bibliographic record that describes its physical format as well as its publication information and history. This means that, to adhere to the standards, we should have each Local Holding Record attached to the bibliographic record that corresponds to the physical format of the holdings: print holdings on a print bib record, microfilm holdings on a microfilm record, etc.
This standard is something that we at MINITEX have tried to encourage staff of MULS participating libraries to follow, so many MULS libraries already have holdings that fit this standard. For an example of this kind of holdings, see the TQI Local Holdings Records on the print and electronic versions of The Christian Science Monitor. (ISSN 0882-7729 / OCLC #10969332 and OCLC #35351012)
The advantage of this method of reporting, of course, is that the bibliographic record carries all of the descriptive elements so searchers know about the format of the issues your library holds, or that describe differences between the original publication and a reproduction or alternate format. Each holding can be updated independently, and OCLC ILL deflection system recognizes the holding format from the format code in the bib record, so it can apply the correct policies to any ILL request.
The major problem with this separate record reporting method is that we need to let folks know that your library has holdings attached to more than one record. We supplement this information by including a cross reference note in the LHR that directs users to the other records and holdings in other formats. To make these notes as useful as possible in as many environments as possible, we've decided to identify these additional records by both ISSN and OCLC number. So, for example, the holdings on the microfilm record would refer the reader to the print record and read something like:
"For hardcopy see ISSN 0041-2136 / OCLC #23154681."
We'd want to include the cross reference notes in both the LHR summary field and in the public note field ($z) of the 863. And, if we had holdings only in a non-print format that reproduced a print publication (e.g. we hold only microfilm of a print publication), we'd put a LHR on the print record that referred searchers to our microfilm holdings.