TY  - BOOK
AU  - Copi,Irving M.
TI  - Symbolic logic
SN  - 8120309707
AV  - BC135 .C58 1979
U1  - 511.3 
PY  - 1979///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Logic
KW  - Symbolic and mathematical
N1  - Includes index
ER  -