Luthans, Fred. The practice of supervision and management / Fred Luthans, Mark J. Martinko. - New York : McGraw-Hill, c1979. - x, 556 p. : ill. ; 25 cm. Includes index. ISBN: 0070391238 Subjects--Topical Terms: Supervision of employees. LC Class. No.: HF5549 / .L83 1979