Keyfitz Nathan <br/><br/>
World population :  an analysis of vital data / 
by Nathan Keyfitz and Wilhelm Flieger 
 - 2nd ed. 
 - London :  University,  1968. 
 - 666p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population
<br/><br/><label>Dewey Class. No.: </label>304.6  / KEY/W