Reference and information services : an introduction / Richard E. Bopp and Linda C. Smith, editors. - Fourth edition. - xxiii, 743 pages : illustrations ; 26 cm. ISBN: 9781591583653 (hardcover : acidfree paper) 1591583659 (hardcover : acidfree paper) 9781591583745 (pbk. : acidfree paper) 1591583748 (pbk. : acidfree paper) 9781598848175 (ebk.) 1598848178 (ebk.) LCCN: 2011008550 Subjects--Topical Terms: Reference services (Libraries)Information services. LC Class. No.: Z711 / .R443 2011 Dewey Class. No.: 025.52