Ralph M. Barnes <br/><br/>
Motion and time study design & measurement of work 

 - New York  Jhon Willey & sons  1980 
 - 689p  PB 
<br/><br/><br/>En 
<br/><br/><label>Subjects--Personal Names: </label><br/>Management
<br/><br/><label>Dewey Class. No.: </label>658.542  / BAR