Commodity trade statistics, 1989. 

 - New York  United Nations          1993 
 - 336p.  cm. 
<br/><br/> Statistical paper series D, vol. xxxix, no. 1-20. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N93s, N3/UN