approved by the Standing Committees of the IFLA Section on Cataloguing and the IFLA Section on Serial PublicationsIFLA Universal Bibliographic Control and International MARC Programme, British Library Bibliographic Services1988
International Federation of Library Associations and InstitutionsIFLA Universal Bibliographic Control and International MARC Programme, British Library Bibliographic Services1987
International Federation of Library Associations and InstitutionsIFLA Universal Bibliographic Control and International MARC Programme, British Library Bibliographic Services1987
International Federation of Library Associations and InstitutionsIFLA Universal Bibliographic Control and International MARC Programme, British Library Bibliographic Services1987