Ammer .Dean S. <br/><br/>
Materials management and purchasing. 

 - 4th  ed. 
 - New york :  IRWIN,  1980. 
 - 686  p. ;    cm. 
<br/><br/>INDEX. 
<br/><br/><label>ISBN: </label> $ 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PURCHASING.