TY  - BOOK
AU  - Wittgenstein,Ludwig
TI  - Tractatus logico-philosophicus 
SN  - 0710079230 
U1  - 160  
PY  - 1974///
CY  - London
PB  - Routledge and Kegan Paul
KW  - Logic, Symbolic and mathematical
KW  - Language and languages
N1  - Originally published in German in Annalen der Naturphilosophie, 1921 under title: Logisch-Philosophische Abhandlung
ER  -