Yee, A. Effort to harness biomass energy. IN Sustainability. Manila Bulletin.
芝加哥风格引文Yee, Amy. "Effort to Harness Biomass Energy. IN Sustainability." Manila Bulletin .
MLA引文Yee, Amy. "Effort to Harness Biomass Energy. IN Sustainability." Manila Bulletin, .
警告：这些引文格式不一定是100％准确.