Spiegelman, Mortimer <br/><br/>
Introduction to demography 
Mortimer  Spiegelman 
 - rev. ed. 
 - Cambridge  Harvard University Press  c1955 [reprinted 1980] 
 - x,514p.:ill.,tables.;  23cm. 
<br/><br/><label>Dewey Class. No.: </label>301.32  / SPI