The concise encyclopedia of western philosophy and Philosophers / 
edited by J.O.Urmson and Jonathan Ree 
 - New ed. completely revised 
 - London :  Unwin Hyman,  1989 
 - 331 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>0044453795 
<br/><br/><label>LCCN: </label>88-033875 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy dictionaries