Keyfitz, Nathan <br/><br/>
Population: facts and methods of demography 

 - San Fransisco  W. H. Freeman and Company  1971 
 - x,613p.  25cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography
<br/><br/><label>LC Class. No.: </label>HB885.K43