Proceeding. 

 - New  York UN        1959 
 - "iii,32p"  cm. 
 - "United Nations , publication" .
<br/><br/><label>Standard No.: </label>17482 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Dewey Class. No.: </label>"Y:5p59G,N58, J9/UN"