Commodity trade statistics. 

 - New York  United Nations.          1994 
 - 387p.  cm. 
 - Statistical papers series-D.  Vol.42, No.1-31 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N92s, N2.42/UN