Spiegelman, Mortimer <br/><br/>
Introduction to demography: 
Mortimer,  Spiegelman  
 - Chicago, Ill. :   Society of Actuaries,   1955 
 - xxi, 309 p.: 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography
<br/><br/><label>Dewey Class. No.: </label>312  / SPI