TY  - BOOK
AU  - Kelly,John J.
TI  - The essence of logic
SN  - 8120311906 (pbk) :
U1  - 160 
PY  - 1997///
CY  - New Delhi
PB  - Prentice-Hall of India
KW  - Computer science
KW  - Logic, Symbolic and mathematical
N1  - Includes bibliographical references and index
ER  -