TY  - BOOK
AU  - Cohen,Morris R.(Raphael)
AU  - Nagel,Ernest
TI  - An introduction to logic
PY  - 1963///
CY  - London
PB  - Routledge & Kegan Paul
KW  - Logic
N1  - This book corresponds to the first part by the same authors, An Introduction to Logic and Scientific Method
ER  -