"Commodity trade statistics, 1988." 

 - New  York United Nations       1988 
 - 356p.  cm. 
<br/><br/> "Statistical papers series D, Vol. XXXV, no. 1-17" 
<br/><br/><label>Standard No.: </label>177251 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"X:54.1N45.N88s, M8/UN"