International Standard Book Number (ISBN) - MARC to RDA Mapping
MARC 21 FIELD TAG MARC 21 SUBFIELD CODE MARC 21 FIELD / SUBFIELD NAME RDA INSTRUCTION NUMBER RDA ELEMENT NAME 020 International Standard Book Number 020 a International Standard Book Number 2.15 Identifier for the Manifestation 020 c Terms of availability 4.2 Terms of Availability 020 z Cancelled/invalid ISBN 2.15 Identifier for the Manifestation [Source : RDA Toolkit]