World population prospects : the 1998 revision : volume II. The sex and age distribution of the world population. 

 - 883p. 
<br/><br/><label>ISBN: </label>ST/ESA/SER.A/180 92-1-151332-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population projections<br/>Population trends<br/>Population growth