Bloomberg, Marty. An introduction to classification and number building in Dewey Marty Bloomberg and Hans Weber ; edited by John Phillip Immroth. - Littleton, Colo. Libraries Unlimited 1976. - 199 p. - Library science text series . Includes index. Bibliography: p. 193-195. ISBN: 0872871150 12.50 Subjects--Topical Terms: Classification, Dewey decimal LC Class. No.: Z696.D7 / B58 Dewey Class. No.: 025.4/3