Anscombe, G. E. M. Gertrude Elizabeth Margaret.
An introduction to Wittgenstein's Tractatus /
G. E. M. Anscombe 
. - Philadelphia : University of Pennsylvania press,  1971 
. - 179 p.  21 cm. 
 - (Pennsylvania paperback  philosophy  ; 1019 )
<br/><label>  ISBN: </label>0-8122-1019-0 
<br/><br/><label>Subjects--Personal Names: </label><br/>Wittgenstein, Ludwig 1889-1951  Tractatus logico-philosophicus