Pil, C. (2002). Ledesma foundation launches duo concert. Manila Times.
芝加哥风格引文Pil, Celine. "Ledesma Foundation Launches Duo Concert." Manila Times 2002.
MLA引文Pil, Celine. "Ledesma Foundation Launches Duo Concert." Manila Times, 2002.
警告：这些引文格式不一定是100％准确.