Commodity trade statistics,1988. 

 - New York  United Nations          1990 
 - 291p.  cm. 
 - Statistical papers series D  Vol.38,1-10 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N90, N0/UN