620.82MUN 314531673168 Mundel, Marvin E. Motion and time study : principles and practices / Marvin E. Mundel . – 4th ed . – New Delhi : Prentice-Hall, 1973. xiv, 674 p. ISBN : Rs. 25/-. Subjects--Topical Terms: ERGONOMICS & WORK MANAGEMENT Dewey Class. No.: 620.82 / MUN