Wittgenstein, Ludwig 1889-1951.
Lectures and conversations on aesthetics, psychology and religious belief /
Ludwig Wittgenstein ; edited by Cyril Barret ; compiled from notes taken by Yorick Smythies, Rush Rhees and James Taylor 
. - Berkeley : Los Angeles : University of California Press,  1966 
. - vii, 72 p.  ill.  21 cm. 
<br/><label>  ISBN: </label>0-520-01354-9