Niebel, Benjamin W. Motion and time study / Benjamin W. Niebel - 4th ed. - Homewood, Ill. : R. D. Irwin, 1967.. - x, 628 p : illus. ; 20 cm. Index present. Subjects--Topical Terms: Motion study.Time study.Wages. Dewey Class. No.: 658.5 / NIM 1967