Ferrer, I. (2009). The Philippines is a mining country. AmCham Philippines Business Journal.
芝加哥风格引文Ferrer, Isagani. "The Philippines Is a Mining Country." AmCham Philippines Business Journal 2009.
MLA引文Ferrer, Isagani. "The Philippines Is a Mining Country." AmCham Philippines Business Journal, 2009.
警告：这些引文格式不一定是100％准确.