Epino, R. M. (2004). What's so special about organic farming. Philippine Star.
芝加哥风格引文Epino, Ramon Ma. "What's so Special About Organic Farming." Philippine Star 2004.
MLA引文Epino, Ramon Ma. "What's so Special About Organic Farming." Philippine Star, 2004.
警告：这些引文格式不一定是100％准确.