Introduction to Work Study 

 - Geneva:  Pub.Inter.Labour Office,  0 
 - 524 p. 
 - 4th edition .
<br/><br/><label>ISBN: </label>9221071081 
<br/><br/><label>Subjects--Index Terms: </label>Introduction to Work Study. 
<br/><br/><label>Dewey Class. No.: </label>658.542  / I-61