Daniells, Lorna
Business information sources / Lorna M. Daniells
University of California Press, 1985
 Buku Referensi
Répertoire bibliographique de la philosophie
Institut superieur de philosophie, 1949-1990
 Buku Teks
Holm, Jean
Keyguide to information sources on world religions / Jean Holm
Mansell, 1991
 Buku Referensi
Wynar, Bohdan S.
Introduction to bibliography and reference work: a guide to materials and sources / Bohdan S. Wynar
Libraries Unlimited, Inc., 1967
 Buku Teks
Pemberton, John E.
How to find out in mathematics : a guide to sources of mathematical information
Pergamon Press, 1969
 Buku Teks