Spencer, Herbert,  1820-1903 <br/><br/>
The principles of biology /  
by Herbert Spencer. 
 - Rev. and enl. ed. 
 - [London] :   Williams and Norgate,   1898-1899 ( 
 - 2 v. (XII, 706 ; XIII, 660 p.) ;   22 cm. 
 - A System of Synyhetic Philosophy ;   2-3 .
 - A System of Synyhetic Philosophy ;   2-3 .
<br/><br/>Con propaganda ed. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biología