TY  - BOOK
AU  - Russell, Bertrand
AU  - Robert Charles Marsh
TI  - Logic and Knowledge: Essays 1901-1950
SN  - 004442600
AV  - BC71 RUS 1956
PY  - 1956///
CY  - London
PB  - Unwin
KW  - Philosophy
KW  -  Logic
KW  - mathematical.
ER  -