Niebel, Benjamin W. Motion and time study [by] Benjamin W. Niebel. - 5th ed. - Homewood, Ill., R. D. Irwin, 1972. - xii, 709 p. illus. 24 cm. - The Irwin series in management . Includes bibliographical references. LCCN: 71176051 Subjects--Topical Terms: Motion study.Time study.Wages. LC Class. No.: T60.7 / .N54 1972 Dewey Class. No.: 658.5/42