Barnes, Ralph Mosser,  1900- <br/><br/>
Motion and time study :  design and measurement of work / 
Ralph M. Barnes. 
 - 7th ed. 
 - New York :  Wiley ,  1980 . 
 - axi, 689 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. [661]-678. 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion study
<br/><br/><label>LC Class. No.: </label>T60.4