Malcolm, Norman 1911-.
Ludwig Wittgenstein: a memoir /
Norman Malcolm ; with a biographical sketch by G.H. von Wright 
. - 2nd edition  with Wittgenstein’s letters to Malcolm 
. - Oxford : New York : Oxford University Press,  1984 
. - viii, 136 p.  21 cm. 
<br/><label>  ISBN: </label>0-19-283042-2 
<br/><br/><label>Subjects--Personal Names: </label><br/>Wittgenstein, Ludwig 1889-1951