TY  - BOOK
AU  - Wittgenstein, Ludwig  .
TI  - Tractatus logico-philosophicus / 
SN  - 0-415-25408-6
U1  - R1 
PY  - 2001///
CY  - New York : 
PB  - Routledge , 
KW  - Logic, Symbolic and mathematical
ER  -