Population theory and policy:  selected readings. 
Edited by Joseph J. Spengler and Otis Dudley Duncan.  
 - Glencoe, Ill.,  Free Press  [1956]  
 - x, 522 p  diagrs., tables  24 cm. 
<br/><br/>Bibliography: p. 510-519.  
<br/><br/><label>ISBN: </label>0136871453 (pbk.) 0136871526 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.
<br/><br/><label>LC Class. No.: </label>HB881  / .S67