Commodity trade statistics, 1990. 

 - New York  United Nations          1992 
 - 371p.  cm. 
<br/><br/> Statistical paper series D, vol. xl no. 1-25. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N92s, N2/UN