Ward, Lester Frank,  1841-1913. <br/><br/>
The psychic factors of civilization / 
by Lester F. Ward. 
 - Boston :  Ginn & company,  1893. 
 - xxi, 369 p.  24 cm. 
<br/><br/> "List of authors and their works": p. [333]-352. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology.<br/>Psychology.<br/>Civilization.<br/>Social psychology.