Aptekar, Herbert H. Basic concepts in social case work, [electronic resource] / by Herbert H. Aptekar.. — Chapel Hill, : The University of North Carolina Press,, 1941.. — ix, 201 p. 22 cm. LCCN: 41022986 Subjects--Topical Terms: Social service.Service social personnel. LC Class. No.: HV43 / .A68 Dewey Class. No.: 361.8