TY - BOOK AU - De Castro, Leonardo D. AU - ED - ED - ED - ED - SN - 9715420702 (paperback) SN - 2 PY - 0000///46 CY - PB - KW - KW - 2 KW - 0 KW - 6 KW - 20 KW - Filipino KW - Ethics;Philosophy, Filipino N1 - Includes index; 5 ER -