Bliss, Henry Evelyn Bibliographic classification: Extended by systematic auxiliary schedules for composite specification and notation - 2nd ed. - New York: The H. W. Wilson Company, 1952 Vol. 1-2 (Classes 1-9 and Classes A-K) Subjects--Topical Terms: Library science Subjects--Index Terms: Classification Universal Decimal Class. No.: D 025.49 BC / J3.4;2