Pan, I. L. (1997). Napocor to stop selling power to firms. Manila Times.
芝加哥风格引文Pan, Isabel L. "Napocor to Stop Selling Power to Firms." Manila Times 1997.
MLA引文Pan, Isabel L. "Napocor to Stop Selling Power to Firms." Manila Times, 1997.
警告：这些引文格式不一定是100％准确.