TY  - BOOK
AU  - Malitao, Arnel L
TI  - Essential logic
SN  - 971-096-383-5
U1  - 160 M295e 2003 
PY  - 2003///
CY  - Mandaluyong City : 
PB  - National Book Store
KW  - Logic
N1  - Includes bibliographical references
ER  -