The effective reference librarian / Diana M. Thomas, Ann T. Hinckley, Elizabeth R. Eisenbach. Thomas, Diana M. Hinckley, Ann T. jt. aut. Eisenbach, Elizabeth R. jt. aut. Reference services (Libraries) Z711 .T48 025.52 THE 19 Includes bibliographical references and index. New York : Academic Press, c1981. c1981. 1981 Text ix, 214 p. ; eng Library and information science