The Concise encyclopedia of Western phylosophy and philosophers 
edited by J.O. Urmson. 
 - New York  Hawthorn Books  1967, c1960. 
 - 431 p.  ports. 
<br/><br/>Bibliography: p. 421-431. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy--Encyclopedias and dictionaries.<br/>Philosophers--Biography--Encyclopedias.