Ayer, A. J.  1910-1989 <br/><br/>
The foundations of empirical knowledge / 
by Alfred J. Ayer. 
 - London :  Macmillan,  1940 [Reprinted 1971] 
 - x, 276 p. :  22 cm. 
<br/><br/>Includes bibliographical footnotes and index. 
<br/><br/><label>ISBN: </label>0333005724 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge, Theory of.<br/>Perception.
<br/><br/><label>Dewey Class. No.: </label>121  / AYF  1971