Chapple, W. A.  1864-1936 <br/><br/>
The Fertility of the Unfit  [electronic resource] / 
W. A. Chapple 
 -  Project Gutenberg,  2005 
 - Project Gutenberg  16254 .
<br/><br/> Public domain in the USA. 
<br/><br/>Electronic text 
<br/><br/><label>Subjects--Index Terms: </label>Involuntary sterilization Eugenics Population 
<br/><br/><label>LC Class. No.: </label>HV