Halsey, George D. Supervising people. - Rev. ed. - New York, Harper [1953] - x, 238 p. illus. 21 cm. "A suggested library on supervision": p. 226-230. LCCN: 53008537 Subjects--Topical Terms: Personnel management. LC Class. No.: HF5549 / .H284 1953 Dewey Class. No.: 658.302 / HAS 1953