Calumpita, R. E. (2003). Militants hit GMA's plan for ID system. Manila Times.
芝加哥风格引文Calumpita, Ronnie E. "Militants Hit GMA's Plan for ID System." Manila Times 2003.
MLA引文Calumpita, Ronnie E. "Militants Hit GMA's Plan for ID System." Manila Times, 2003.
警告：这些引文格式不一定是100％准确.