Classification of commodities by industrial origin. 

 - New York  U.N.           1971 
 - 144p.  cm. 
 - Statistical papers series M, no.43 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>V1N45,93:3 (X9).N71s, L1/UN