Commodity trade statistics. 

 - New York  United Nations          1989 
 - 394p.  cm. 
 -  Vol. 38, no. 1-2 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N89s, M9/UN