Commodity trade statistics, 1989. 

 - New York  United Nations          1991 
 - 444p.  cm. 
 -  Vol.39;1-16 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N91, N1/UN