TY  - BOOK
AU  - Cohen,Morris R., Nagel, Ernest.
AU  - x
TI  - An introduction to logic and scientific method: x
SN  - x
U1  - 160/COI 
PY  - 1972///
CY  - Lond.
PB  - Routedge
KW  - Philosopgy
N1  - x
ER  -