Provedení The Classification Research Group 1952-1968 (1971)

FOSKETT, Douglas J. The Classification Research Group 1952-1968. In: Allen KENT, Harold LANCOUR, ed. Encyclopedia of library and information science. Vol. 5, Circulation to coordinate indexing. New York: Marcel Dekker, 1971, s. 141-145. ISBN 0-8247-2004-0.