Ruggiero, Guido de,  1888-1948. <br/><br/>
Modern philosophy / 
by Guido de Ruggiero ; translated by A. Howard Hannay, B. A., and R. G. Collingwood. 
 - Westport, Conn. :  Greenwood Press,  1969. 
 - 402 p. ;  22 cm. 
 - Library of philosophy .
<br/><br/>Bibliography : p. 388-394. 
<br/><br/><label>ISBN: </label>0837128234 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy, Modern.