Spencer, Herbert, <br/><br/>
The principles of sociology, 

 - New York and London,  D. Appleton and company,  1914. 
 - 3 v. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology.
<br/><br/><label>Dewey Class. No.: </label>301  / SPE