Report 

 - New York  United Nations          1972 
 - iii,29p  cm. 
<br/><br/> Supp. no. 20 (A/8720) 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>VIN45,933:8.N72r, L2,20