TY  - BOOK
AU  - Copi, Irving M
TI  - Symbolic logic 
SN  - 81-203-0970-7
U1  - 511.3 
PY  - 1997///
CY  - New Delhi
PB  - Prentice Hall of India
KW  - Mathematics
KW  - Logic- Symbolic and mathematical
ER  -