Edwards Paul <br/><br/>
The Encyclopedia of Philosophy ( Vol 5 & 6) 

 - New York  Macmillan Pub. Co. Inc. & The  Free Press1967 
 - 1074p. 
<br/><br/><label>ISBN: </label>0-028949803 
<br/><br/><label>Dewey Class. No.: </label>30