TY  - BOOK
AU  - Copi,Irving M.
TI  - Symbolic logic
SN  - 81-203-0970-7
U1  - 166 
PY  - 2002///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Logic
KW  - Symbolic
N1  - Includes index
ER  -