Parry, John. <br/><br/>
Guide to World Commodity Markets /  

 - Third Ed. /  
 - New York-10024 :   Nichols Publishing Company ,   1994 
 - p393 :  
<br/><br/><label>ISBN: </label>0-89397-123-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics 
<br/><br/><label>Dewey Class. No.: </label>X:57.1  / M2