Barnes, Ralph Mosser,  1900- <br/><br/>
Motion and time study / 
Ralph Mosser Barnes. 
 - 3d ed. 
 - New York :  J. Wiley,  c1949 [Reprint 1956]. 
 - xii, 559 p. :  illus. ;  24 cm. 
<br/><br/>Bibliography: p. 541-548 & Includes Index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion study.<br/>Time study.
<br/><br/><label>Dewey Class. No.: </label>658.542  / BAM 1956