:orphan: .. _glossary-label: Glossary =============================================================================== .. glossary:: :sorted: MARC21 MARC21, or Machine-Readable Cataloging, is a standardized format for representing and sharing bibliographic and related information in a machine-readable format. Developed and maintained by the Library of Congress, MARC21 is used by library systems worldwide. UNIMARC UNIMARC, or Universal Machine-Readable Cataloging, is a standardized format for representing and sharing bibliographic and related information in a machine-readable format. Developed and mainatined by the Permanent UNIMARC Committee of the International Federation of Library Associations and Institutions (IFLA), and is widely used in some parts of Europe (including France).