TY  - BOOK
AU  - Magnus,P.D.
TI  - An Introduction to Formal Logic
PY  - 2012///
CY  - [Place of publication not identified]
PB  - forallx
KW  - Logic
KW  - sears
UR  - https://drive.google.com/file/d/1l3tNsxDkBuXlY6nSUcMyVkQLJaztpO1O/view?usp=sharing
ER  -