Niebel, Benjamin W. <br/><br/>
Motion and time study. 

 - 5. ed. 
 -  Illinois  Richard D. Irwin, Inc.  1972. 
 - 709 p.  illus. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion study.<br/>Wages<br/>Time study.