Concise report on the World population situation in 1991:  with a special emphasis on age structure\ 

 - New York :  United Nations,   1991. 
 - 33p.: 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population
<br/><br/><label>Dewey Class. No.: </label>301.32  / UNI N91C