International Federation of Library Associations and Institutions. Committee on Union Catalogues and International Loans & Wehefritz, V. (1974). International loan services and union catalogues: A manual published by the Committee ... V.Klostermann.
Chicago Style (17. basım) AtıfInternational Federation of Library Associations and Institutions. Committee on Union Catalogues and International Loans ve Valentin Wehefritz. International Loan Services and Union Catalogues: A Manual Published by the Committee ... Frnkfurt am Main: V.Klostermann, 1974.
MLA (8th ed.) AtıfInternational Federation of Library Associations and Institutions. Committee on Union Catalogues and International Loans ve Valentin Wehefritz. International Loan Services and Union Catalogues: A Manual Published by the Committee ... V.Klostermann, 1974.