Microforms: Multiple Versions: Bib and Hol screens
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Princeton University Cataloging Documentation

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Microforms and photocopies
Multiple versions

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Cataloging guidelines
 Control fields
  Bib and Hol screens

Order of preference
  Original work
  Diff. generations of microforms
  Differing formats

Preservation replacements

Bibliographic and Holdings Screens for Multiple Versions

The master preservation copy takes precedence over other versions in determining cataloging treatment and description.

Always describe the master preservation copy in the photoreproduction (533) note.

Formulate an appropriate statement to describe the other version and record it in an 866 áz note on that version's mfhd. In most cases, one of the following should apply:

    Original text.
    Positive service copy.
    Negative service copy.
    Service copy. Mixed polarity.
    Master printing copy. Available for reproduction only