Zenz, Gary J. <br/><br/>
Purchasing And The Management Of Materials/  eng. 
Zenz, Gary J. 
 - New York:  John Wiley & Sons,  1981. 
 - xiii, 514p.:  23cm. 
<br/><br/><label>ISBN: </label>0471060917 
<br/><br/><label>Dewey Class. No.: </label>658.72  / ZEN