Tonta, Tasar LCSH and PRECIS in library and Information Science : a comparativ e study / Yasar Tonta. - Illinois: Graduate School of Library and Information Science, Pub lications Office, University of Illinois , 1992 - 68p.; 23 cm. Occasional paper; ISSN: 02761769 Subjects--Topical Terms: Subject headings Dewey Class. No.: 025.49