TY  - BOOK
T1  - Our knowledge of the external world
T2  - Mentor Book.
A1  - Russell, Bertrand
LA  - English
PP  - New York
PB  - The New American Library
YR  - 1929
ED  - 2nd ed.
UL  - https://ds.mainlib.upd.edu.ph/Record/UP-99796217606667034
OP  - 191
NO  - "Delivered as Lowell lectures in Boston in March and April, 1914".
CN  - B 1649 R93 08 1956
KW  - Philosophy.
ER  -