Commodity trade statistics   1980 Maritime transport study.    

 - New York  U.N.           1983 
 - xxxix; 374p.  cm. 
 - Statistical papers series-D.  Vol.27, No.2 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:54.1N45.N80s, M3.27/UN