Glickman, Carl D. Supervision and instructional leadership : a developmental approach / Carl D. Glickman, Stephen P. Gordon, Jovita M. Ross-Gordon. - 6th ed. - Boston : Pearson, c2004. - xx, 508 p. ; 24 cm. Includes bibliographical references and indexes. ISBN: 0205380794 LCCN: 2003051825 Subjects--Topical Terms: School supervision. LC Class. No.: LB2806.4 / .G56 2004 Dewey Class. No.: 371.2/03