Barnes, Ralph Mosser. <br/><br/>
Motion and time study / 
Ralph Mosser Barnes. 
 - 4th ed. 
 - New York:  Wiley,  c1958. 
 - xii,665p.:  table, figs., graph.photos;  22 cm. 
<br/><br/> Includes Index 
<br/><br/>Includes bibliographical reference p.641-653 
<br/><br/>
<br/><br/><br/>English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time study<br/>Motion study<br/>Industrial efficiency
<br/><br/><label>Dewey Class. No.: </label>658.542/BAM