Chisholm, Roderick M.. <br/><br/>
Theory of Knowledge /  

 - Third Ed. /  
 - New Delhi-1 :   Prentice-Hall of India Pvt. Ltd. ,   1983 
 - p.105 :  
<br/><br/><label>ISBN: </label>0-87692-754-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy
<br/><br/><label>Dewey Class. No.: </label>R  / N2;2