Barnes, Ralph M <br/><br/>
Motion and time study 

 - 4th ed. 
 - Calcutta   Asia Publishing house   1965 
 - xii,665 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion Study
<br/><br/><label>Dewey Class. No.: </label>658.542  / B2611