Commodity trade statistics. 

 - New York  United Nations          1993 
 - 163p.  cm. 
 - Statistical papers series.  Vol.43, No.1-32 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N93s, N3.43/UN