BARNES RALPH M <br/><br/>
Motion and Time Study Design and Measurement of Work 

 - 7th 
 - New York  John wiley and sons  1980 
 - XI+689PP 
<br/><br/><label>ISBN: </label>0-471-05905-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion and Time Study