OLAC Best Practice for mode of issuance
Prerecording
Recording
Recording an unstructured description
Recording a structured description
Option
Follow LC practice and record the mode of issuance in the MARC LDR/07 of the bibliographic record.
Recording an identifier
Recording an IRI
Document Date: 2026/02/06
Document: https://access.rdatoolkit.org/en-US_ala-27938cdc-2cd5-394f-8e16-1d05593404a9