Kouzes, James M., 1945- Credibility : how leaders gain and lose it, why people demand it / James M. Kouzes, Barry Z. Posner. - San Francisco, Calif. : Jossey-Bass, c2011. - xxi, 250 p. ; 24 cm. "All new and revised"--Jacket. Includes bibliographical references and index. ISBN: 9780470651711 Subjects--Topical Terms: Executive ability.Interpersonal relations.Leadership.