Estupigan, R. (1999). What's your driving attitude? Manila Bulletin.
Chicagoスタイル(17版)引用形式Estupigan, Ruth. "What's Your Driving Attitude?" Manila Bulletin 1999.
MLA(9版)引用形式Estupigan, Ruth. "What's Your Driving Attitude?" Manila Bulletin, 1999.
警告: この引用は必ずしも正確ではありません.