TY  - BOOK
AU  - Copi Irving Ed.
AU  -  Beard Robert W Ed.
TI  - Essays on wittgenstein's Tractatus
U1  - R3xM891,2:g, K6 
PY  - 1966///
CY  - London
PB  - Rouledge UK      
KW  - PHILOSOPHY
ER  -