Knowles, Malcolm S. 1913-1997. The adult learner : the definitive classic in adult education and human resource development / Malcolm S. Knowles, Elwood F. Holton III, Richard A. Swanson. - 6th ed. - Amsterdam ; Boston : Elsevier, c2005. - xii, 378 p. : ill ; 23 cm. ISBN: 0750678372 (alk. paper) LCCN: 2004024356 Subjects--Topical Terms: Adult learning.Adult education.Training. Dewey Class. No.: 374