Spencer, Herbert,  1820-1903 <br/><br/>
The principles of psychology / 
by Herbert Spencer 
 - 2 volúmenes 
 - A system of synthetic philosophy ;  4-5 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psicología
<br/><br/><label>LC Class. No.: </label>BF121  / S624 1892