Cassell Kay Ann References and information services in the 21st century An introduction Cassell Kay Ann; Hiremath Uma - 2nd - New York Neal-Schuman Publishers USA 2009 - xvi,341p. cm. ISBN: 9781555706722 (pbk) 3293.24 Standard No.: 99113 Source: 719, 23/12/2009, K. K. Publications Textual Subjects--Topical Terms: LIBRARY SCIENCE Dewey Class. No.: 2:7'P, P6;P9