Population bulletin of the United Nations. 

 - New York  UN           1988 
 - 23/24;vi,86p.  cm. 
<br/><br/><label>ISBN: </label>9211511704 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:5.73N88, M8/UN