Heap, Ken, 1929- The practice of social work with groups : a systematic approach / Ken Heap. - London ; Boston : G. Allen & Unwin, 1985. - xiii, 208 p. : ill. ; 23 cm. - National Institute social services library ; no. 49 . Includes index. Bibliography: p. [193]-204. ISBN: 0043620590 (alk. paper) 0043620604 (pbk. : alk. paper) Subjects--Topical Terms: Social group work.Group relations training. Dewey Class. No.: 361.4 / HEP 1985