Passa al contenuto principale
Supporto OCLC

Summary of processing changes

  1. Ultimo aggiornamento
  2. Salva come PDF
Learn about the history of the 049 field, the communication format, and the OCLC number.

 Note: The changes described in this guide have been incorporated into relevant areas of the OCLC support site.  

 

  • History of field 049
    Find the history of field 049, including its placement in a bibliographic record, indicators, and repeatability.
  • History of the communication format
    Find the history of the communication format from the 1974-2016.
  • History of the OCLC number
    Find a brief description of the various forms of OCLC numbers that OCLC has output in OCLC-MARC via subscription and export from various OCLC cataloging services.