Global estimates and projections of population by sex and age  : the 1988 revision 
/ by [the United Nations] 
. - New York  : United Nations, 1989
. - IX-383 p.  ; 28 cm. 
<br/><br/><label>Source: </label> Ancient fonds 
<br/><br/><label>Universal Decimal Class. No.: </label>312.