Commodity trade statistics. 

 - New York  U.N.           1990 
 - 251p.  cm. 
 - Statistical papers series-D.  Vol. 38, No.1-12 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N88s, M0.38/UN