Statistical commission   report of the 9th session (16 april -2 may 1956)    

 - New York  United nations          1956 
 - 30p  cm. 
<br/><br/> supp. no. 7 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>VIN45,936:8.N56, UN  J6,7