Selected materials in classification : a bibliography / compiled by Barbara Denison. Case Western Reserve University. Bibliographic Systems Center. Denison, Barbara. Special Libraries Association. Classification schemes and subject headings lists. Classification Books Bibliography. 025.4 DES The previous bibliography issued in 1961 as Special Libraries Association Guide to the SLA loan collection was first published in 1945 under title Classification schemes and subject headings lists. New York : Special Libraries Association, c1968. c1968. 1968 Text 142 p. ; eng