Commodity trade statistics, 1990. 

 - New York  United Nations          1994 
 - 271p.  cm. 
<br/><br/> Statistical paper series D, vol. xl no. 1-30. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N94s, N4/UN