Progress in group and family therapy / Edited by Clifford J. Sager and Helen Singer Kaplan. - New York : Brunner/Mazel, [1972]. - xix, 935 p. ; 26 cm. - 616.8/915/08 . Includes bibliographies. ISBN: 0876300484 Subjects--Topical Terms: Group psychotherapy.Family psychotherapy. Dewey Class. No.: 616.8/915/08