Pearl, Raymond <br/><br/>
Natural history of population / 
by Raymond Pearl 
 - London :  Oxford University press,  1939. 
 - xii, 416p. :  incl. tables, diagrs., forms. 
 - University of London.  Heath Clark lectures, .
<br/><br/>Bibliography: p.[356]-398. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Population.<br/>Fertility.<br/>Birth control.
<br/><br/><label>Dewey Class. No.: </label>304.6  / PEA/N