Keyfitz, Nathan,  1913- <br/><br/>
Population, facts and methods of demography / 
Nathan Keyfitz, Wilhelm Flieger. 
 - San Francisco :  W. H. Freeman,  c1971. 
 - x, 613 p. :  ill. ;  25 cm. 
<br/><br/>Bibliography: p. [607]-609. 
<br/><br/><label>ISBN: </label>0716709317 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography--Mathematical models.<br/>Population--Statistics.<br/>Demography.<br/>Population--Methods.
<br/><br/><label>LC Class. No.: </label>HB885  / .K43 
<br/><br/><label>Dewey Class. No.: </label>304.6  / KEP 1971