Cox, Peter R. <br/><br/>
Demography. 

 - 4th. 
 - Cambridge :  The University Press,  1970. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>521076978 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography.<br/>Population.