TY  - BOOK
AU  - IRVING M. COPI
TI  - SYMBOLIC LOGIC
SN  - 9.7881203097e+012
U1  - 511.3/COP/SYM 
PY  - 2011///
CY  - NEW DELHI
PB  - PHI LEARNING
KW  - MATHEMATICS
KW  - PRINCIPLES OF MATHEMATICS
ER  -