Dewey decimal classification, 20th edition : a study manual - Osborn, Jeanne; Comaromi, John P. (John Phillip), 1937-; Dewey, Melvil, 1851-1931. (Englewood, Colo. : Libraries Unlimited, 1991)
Includes bibliographical references (p. 291-299) and index.
Keywords: Classification, Dewey decimal -- Evaluation -- Handbooks, manuals, etc; Classification, Dewey decimal -- History -- Handbooks, manuals, etc; Classification -- Books -- Handbooks, manuals, etc