TY  - BOOK
AU  - Russell, Bertrand.
TI  - Our knowledge of the external world: as a field for scientific method in philosophy 
U1  - 100.72 
PY  - 1922///
CY  - London
PB  - George Allen & Unwin
KW  - Theory (Philosophy)
KW  - Logic
KW  - Knowledge, Theory of
KW  - Philosophy
ER  -