TY  - BOOK
AU  - Wittgenstein,Ludwig
AU  - McGuinness,Brian
AU  - Pears,David
TI  - Prototractatus: an early version of Tractatus logico-philosophicus
SN  - 0710067887
AV  - B840 
U1  - 149.94 
PY  - 1971///
CY  - London
PB  - Routledge & Kegan Paul
KW  - Lasky collection
KW  - Logic, Symbolic and mathematical
KW  - Language and languages
KW  - Philosophy
N1  - Text in English and German
ER  -