National MARC formats
Many countries have developed national versions of MARC, in order to accommodate local practices. To address this multiplicity of MARC formats, IFLA fostered the development of an international format dedicated to the exchange of bibliographic data among national libraries. UNIMARC was the result.
Recent years have seen a convergence upon the MARC 21 and UNIMARC formats by many counties with little development of new MARC formats.
Last update: 5 December 2017