Pan, I. L. (1999). Petron hikes petrol prices by 8 centavos. Manila Times.
芝加哥风格引文Pan, Isabel L. "Petron Hikes Petrol Prices by 8 Centavos." Manila Times 1999.
MLA引文Pan, Isabel L. "Petron Hikes Petrol Prices by 8 Centavos." Manila Times, 1999.
警告：这些引文格式不一定是100％准确.