Spengler, Joseph John (ed) <br/><br/>
Demographic analysis ; selected readings / 
Joseph John Spengler and O D Duncan 
 - Glencoe :  Free Press,  1956 
 - 819p. maps. diagrs. tables. 25cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.
<br/><br/><label>Dewey Class. No.: </label>304.6  / SPE