Hughes, Richard L. Leadership : enhancing the lessons of experience / Richard L. Hughes, Robert C. Ginnett, Gordon J. Curphy - 8th ed. - New York : McGraw Hil, c2015 - xviii, 734 p. : ill. ; 24 cm. Includes bibliographical references and indexes ISBN: 9780077862404 (hbk.) Subjects--Topical Terms: Leadership