TY  - BOOK
AU  - Wittgenstein,Ludwig
AU  - McGuinness,B.F
AU  - Nyberg,T
AU  - Wright,G.H.Von
AU  - Pears,D.F
AU  - McGuinness,B.F
TI  - Prototractatus: an early version of Tractatus logico-philosophicus
SN  - 0710067887
U1  - 149.9 
PY  - 1971///
CY  - London
PB  - Routledge and Kegan Paul
KW  - Logic, Symbolic and mathematical
KW  - Language and languages
KW  - Philosophy
N1  - Text in English and German; Translation of : Tractatus logico-philosophicus
ER  -