TY  - BOOK
AU  - Wittgenstein Ludwig
TI  - On certainty. edited by G. E. M. Anscomba and G. H
SN  - 0 631 12000 9
U1  - R195, K9 
PY  - 1969///
CY  - Oxford
PB  - Basil Blackwell         
KW  - Philosophy
N1  - Text and German and English
ER  -