Pettes, Dorothy E. Supervision in social work : A method of student training and staff development / Dorothy E. Pettes. - London : George Allen & Unwin, 1967 - 180 p. ; 22 cm. - National institute for Social Work Training, 10. . ISBN: 0043600077 Subjects--Topical Terms: Social work--Organization. Dewey Class. No.: 361.6 / PET