Russell, Bertrand. <br/><br/>
Our knowledge of the external world /  
by Bertrand Russell. 
 - /   . 
 - London :   Routledge ,   2009. 
 - vii, 210p. :   figures ;   22cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>0415473772  RS295.00 
<br/><br/><label>Subjects--Index Terms: </label>EPISTEMOLOGY 
<br/><br/><label>Dewey Class. No.: </label>121  / RUS/O