Barnes, Ralph M <br/><br/>
Motion and time study : design and measurement  of work 
<label>/ by </label> Barnes, Ralph M 
 - 6th ed. 
 - New York  John Wiley  1968 
 - xii,799p.  ill.  24 cm. 
<br/><br/>L 
<br/><br/><label>Dewey Class. No.: </label>658.542  / B