Ubben, Gerald C. The principal : creative leadership for effective schools / Gerald C. Ubben, Larry W. Hughes. - 2nd ed. - Boston : Allyn And Bacon, c1992 - xiv, 385p. : ill. ; 25cm Includes bibliographical references and index ISBN: 0205135013 Subjects--Topical Terms: School principals--United States Dewey Class. No.: 373.120120973