Barnes, Rallph M. <br/><br/>
Motion and time study and measurement of work. 
Rallph M.Barnes 
 - New YOrk.  John Wiley.  1980 
 - ix; 689p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion and time study and measurement of work.
<br/><br/><label>Dewey Class. No.: </label>658.542 B180M