TY  - BOOK
AU  - Cohen, Morris R.
AU  - Nagel, Ernest 
TI  - An introduction to logic and scientific method
U1  - 160 
PY  - 1964///
CY  - London
PB  - Routledge & Kegan Paul
KW  - Philosophy
KW  - Logic
KW  - দর্শন
N1  - Includes : index
ER  -