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The recommended merge rule is CSU Bib Overlay NZ. For a comparison of this merge rule and others please see this google doc. This merge rules rule is the primary rule for the Orbis Cascade Alliance. It protects the 001 field (MMS ID) and replaces the 035 if it is an OCLC number. If the 035 is non-OCLC it is protected from being overwritten. It also removes all fields from the existing record and replaces them with all fields in the incoming record.
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