Wittgenstein, Ludwig. <br/><br/>
On certainty /  
Ludwig Wittgenstein; edited by G.E.M. Ansscombe and G.H. Vanwright. 
 - Oxford :   Blackwell Publishers ,   1969 rep.1995. 
 - 6 ,105p. :   ills.,fig ;   23cm .  
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<br/><br/><label>ISBN: </label>0631169407  UKP 13.99 
<br/><br/><label>Subjects--Index Terms: </label>CERTAINTY 
<br/><br/><label>Dewey Class. No.: </label>121.63  / WIT/O