Commodity trade statistics. 

 - New York  United Nations          1986 
 - 284p.  cm. 
 - Statistical papers series D, Vol.xxx, no.1-27) .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N80s, M0.30-(1-27)/UN