Lucas, D. L. (2003). Passage of unpopular but vital laws challenge to Congress. Manila Times.
芝加哥风格引文Lucas, Daxim L. "Passage of Unpopular but Vital Laws Challenge to Congress." Manila Times 2003.
MLA引文Lucas, Daxim L. "Passage of Unpopular but Vital Laws Challenge to Congress." Manila Times, 2003.
警告：这些引文格式不一定是100％准确.