Barnes, R.M. <br/><br/>
Motion and time study design and measurement of work 

 - New York  John Wiley & Sons  1980 
 - xi,689p.  23cm. 
<br/><br/><label>ISBN: </label>0471083356 
<br/><br/><label>Dewey Class. No.: </label>658.542  / B25M