TY  - BOOK
AU  - Cornejo,Nigel L.
AU  - Nigel L. Cornejo.
TI  - Logic: The art of defining and reasoning 
SN  - 9786214060047
U1  - 160 
PY  - 2015///
CY  - Manila
PB  - Mindshapers Co., Inc.
N1  - Includes bibliographical reference
ER  -