TY  - BOOK
AU  - Umali, Pepe Sm.
TI  - Logic : : the art of living with reason 
SN  - 978-971-0445-12-7
AV  - 160 Um1 
PY  - 2007///
CY  - Manila
PB  - Mindshapers
N1  - Includes bibliography
ER  -