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 0043620604 Subjects--Topical Terms: Social group workGroup relations training LC Class. No.: HV45