World population prospects  : the 2008 revision : vol.2 : sex and age distribution of the world population 
/ by the United nations 
. - New York  : United nations, 2009
. - XXXIII-965 p.  : couv. en coul.  ; 28 cm. 
 - Economic & Social affairs .
<br/><br/><label>ISBN: </label>9789211514650 
<br/><br/><label>Universal Decimal Class. No.: </label>314.