recommended by the Project Group on the International Standard Bibliographic Description for Older Monographic Publications (Antiquarian) ; approved by the Standing Committees of the IFLA Section on Cataloguing and the IFLA Section on Rare Books and Manuscripts
prepared by the Subcommittee on the Display of Subject Headings in Subject Indexes in Online Public Access Catalogs, Subject Analysis Committee, Cataloging and Classification Section, Association for Library Collections and Technical Services