LUDWIG WITTGENSTEIN <br/><br/>
ON CERTAINTY 

 -  HARPER & ROW PULISHERS 
 - 90P,4P 
<br/><br/><label>Subjects--Topical Terms: </label><br/>100 Philosophy & psychology--121 Epistemology--PHILOSOPHY--120 Epistemology
<br/><br/><label>Dewey Class. No.: </label>121.6/WIT/ON