Segal, Elizabeth A. An introduction to the profession of social work : becoming a change agent / Elizabeth A. Segal, Karen E. Gerdes, Sue Steiner. - 3rd ed. - Belmont : Brooks/Cole, c2010. - xx, 505 p : ill. Includes bibliographical references and index. ISBN: 9781439038093 : Subjects--Topical Terms: Public welfare.Social service.Social workers. LC Class. No.: HV40 / .S435