TY  - BOOK
AU  - Wittgenstein,Ludwig
AU  - Wittgenstein,Ludwig
TI  - Preliminary studies for the "Philosophical investigations,": generally known as the Blue and Brown books
AV  - B3376.W563 P6 1969b
U1  - 149.94 
PY  - 2008///
CY  - New York
PB  - Barnes & Noble
ER  -