Cooper, Alfred M. How to supervise people. - 4th ed. - New York, McGraw-Hill, 1958. - iv, 250 p. 22 cm. LCCN: 58009852 Nat. Bib. No.: GB59-1288 Subjects--Topical Terms: Supervisors. LC Class. No.: TS155 / .C64 1958 Dewey Class. No.: 658.3124