TY  - BOOK
AU  - Kelly John, J
AU  - Kelly John, J
TI  - Essence of logic
SN  - 9788131761700 (pbk)
U1  - B:(R1), Q1-;4 
PY  - 2011///
CY  - New Delhi
PB  -  Pearson education limited    
KW  -  Logic
KW  -  Natural deduction
KW  -  Predicate logic
KW  -  Propositional logic
KW  - General Science
N1  - Include bibliographical references 250p; Glossary 251-255p; Index 256-258p
ER  -