TY  - BOOK
AU  - Copi, Irving M.
AU  - Cohen, Carl
TI  - Introduction to Logic 
SN  - 8120309421
U1  - 160 
PY  - 1999///
CY  - New Delhi : 
PB  - Prentice-Hall of India, 
KW  - Deduction Logic
KW  - Induction
KW  - Logic
N1  - YY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/81-203-0942-1.pdf
ER  -