Konopka, Gisela. Social group work : a helping process / Gisela Konopka - Englewood Cliffs, N.J. : Prentice-Hall, c 1963. - xii, 307 p. ; 24 cm. - Prentice-Hall sociology series . Includes bibliographies. Subjects--Topical Terms: Social group work. Dewey Class. No.: 361.4 / KOS 1963