TY  - BOOK
AU  - De Castro, Leonardo D.
AU  - De Villa, Agerico M.
TI  - Ethics and logic: Basic concepts
U1  - Fil 170 C279 1993 
PY  - 1993///
CY  - Quezon City
PB  - Katha Publishing Co., Inc.
KW  - Ethics
KW  - Logic
ER  -