TY  - BOOK
AU  - Irwing M. Copi
AU  - Irwing M. Copi
TI  - Symbolic Logic
SN  - 812030970-7
U1  - 511.3 
PY  - 1979///
CY  - New Delhi
PB  - Prentic Hall of India
KW  - Mathematics
ER  -