TY  - BOOK
AU  - Russell,Bertrand  .
TI  - Our knowledge of the external world : as a field for scientific method in  philosophy / 
SN  - 0415096057
U1  - 121 
PY  - 1995///
CY  - London : 
PB  - Routledge , 
KW  - ESISTEMOLOGY
N1  - Include index
ER  -