Barnes, Ralph M. <br/><br/>
Motion and time study design and measurement of work / 
Ralph M. Barnes 
 - 7th ed. 
 - New York :  John Wiley & Sons,  1980 
<br/><br/><label>ISBN: </label>0471059056 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion study
<br/><br/><label>Dewey Class. No.: </label>658.5423  / BAR