Introduction to work study 

 - 2nd ed. 
 - Geneva  ILO  1974 
 - xix, 436p. 
<br/><br/><label>ISBN: </label>9221000117 
<br/><br/><label>Subjects--Index Terms: </label>Work study  Method study  Time study 
<br/><br/><label>Dewey Class. No.: </label>658.54  / ILO