Ayer, A. J.  1910-1989 <br/><br/>
The problem of knowledge / 
Alfred Jules Ayer 
 - London :  Macmillan ,  1956 
 - 258 p. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge, Theory of
<br/><br/><label>Dewey Class. No.: </label>121