Day, David V. An integrative approach to leader development connecting adult development, identity, and expertise David V. Day, Michelle M. Harrison, Stanley M. Halpin. - New York Psychology Press 2009. - xiv, 335 p. cm. Includes bibliographical references and index. ISBN: 9780415964623 (hardback : alk. paper) 9780415964630 (pbk. : alk. paper) 9780415964647 (e-book : alk. paper) LCCN: 2008031345 Subjects--Topical Terms: Leadership--Psychological aspects.Adulthood--Psychological aspects. LC Class. No.: BF637.L4 / D38 2008 Dewey Class. No.: 158.4 / D2731i