Segal, Elizabeth A., An introduction to the profession of social work : becoming a change agent / Elizabeth A. Segal, Karen E. Gerdes, Sue Steiner. - Fourth edition. - xix, 507 pages : illustrations ; 23 cm Includes bibliographical references and index (pages 497-507). ISBN: 9781133355113 1133355110 Subjects--Topical Terms: Social service. LC Class. No.: HV40 / .S324 2013