Villanueva, M. A. (2002). GMA endorses proposed for tougher Dangerous Drug Act. Philippine Star.
芝加哥风格引文Villanueva, Marichu A. "GMA Endorses Proposed for Tougher Dangerous Drug Act." Philippine Star 2002.
MLA引文Villanueva, Marichu A. "GMA Endorses Proposed for Tougher Dangerous Drug Act." Philippine Star, 2002.
警告：这些引文格式不一定是100％准确.