TY  - BOOK
AU  - Kelly, John J
TI  - The essence of logic
SN  - 8120311906
U1  - 004.0151 
PY  - 1997///
CY  - New Delhi
PB  - Prentice Hal of India
KW  - Logic, Symbolic and mathematical
KW  - Computer science
N1  - Includes bibliographical references and index
ER  -