Ackermann, Robert,  1933- <br/><br/>
Theories of knowledge :  a critical introduction / 
Robert Ackermann 
 - New York :  McGraw-Hill,  c1965 
 - ix, 305 p. :  ill. ;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> USD 14.55 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Knowledge, Theory of
<br/><br/><label>Dewey Class. No.: </label>121