TY  - BOOK
AU  - Copi, Irving M.
TI  - Introduction to logic
SN  - 0029461006
U1  - GC 160 C791 1986 
PY  - 1986///
CY  - New York
PB  - Macmillan Pub.
KW  - Logic
N1  - Includes index
ER  -