International Labour Organization <br/><br/>
Introduction to work study / 
International Labour Organization 
 - 3rd edition 
 - Geneva  ILO  c1978 
 - xiv, 442p.:  ill.; 
<br/><br/><label>ISBN: </label>922101939 
<br/><br/><label>Dewey Class. No.: </label>658.5 INT