Commision on International commodity trade. 

 - New York  U.N.           1960 
 - 21p.  cm. 
 - Supplement no.6 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3 (X:5).N60, K0-6/UN