Commodity trade statistics. 

 - New York  U.N.           1990 
 - 329p.  cm. 
 -  Vol.38,No.1-15 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N88s, N0.38/UN