Russell, Bertrand <br/><br/>
Our knowledge of the external world 
Bertrand Russell 
 - London  George allen & unwin  1952 
 - 251p. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> [] 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Philosophy<br/>Theory of knowledge
<br/><br/><label>Dewey Class. No.: </label>121  / RUS