Commodity trade statistics, 1987. 

 - New York  United Nations          1988 
 - 512p.  cm. 
<br/><br/> Statistical paper series D, vol. xxxiii. no. 1-3. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N88s, M8/UN