Echeminada, P. (2001). PPC narrows down choices for Senate president, speaker. Philippine Star.
芝加哥风格引文Echeminada, Perseus. "PPC Narrows Down Choices for Senate President, Speaker." Philippine Star 2001.
MLA引文Echeminada, Perseus. "PPC Narrows Down Choices for Senate President, Speaker." Philippine Star, 2001.
警告：这些引文格式不一定是100％准确.