TY  - BOOK
AU  - Russell, Bertrand
TI  - Our knowledge of the external world: : As a field for scientific method in philosophy
SN  - 9780415473774
U1  - RxM72,EW  P9 
PY  - 2009///
CY  - London
PB  - Routledge,      
KW  - Philosophy
ER  -