Barnes, Ralph Mosser,  1900- <br/><br/>
Motion and time study :  design and measurement of work / 
Ralph M. Barnes. 
 - 7th ed. 
 - xi, 689 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>
<br/><br/><label>ISBN: </label>0471059056 :  $24.95 
<br/><br/><label>LCCN: </label>80000173 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time study<br/>Motion study
<br/><br/><label>LC Class. No.: </label>T60.4  / .B39 1980