Smith, Thomas Lynn,  1903- <br/><br/>
Demography :  principles and methods / 
T. Lynn Smith, Paul E. Zopf. 
 - 2nd ed. 
 - N.Y. :  Alfred Pub. Co.,  1976. 
 - xvii, 615 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0882840339 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Demography.