Cagahastian, D. C. (2002). 20 Metro hospitals sell cheap medicines. Manila Bulletin.
芝加哥风格引文Cagahastian, Diego C. "20 Metro Hospitals Sell Cheap Medicines." Manila Bulletin 2002.
MLA引文Cagahastian, Diego C. "20 Metro Hospitals Sell Cheap Medicines." Manila Bulletin, 2002.
警告：这些引文格式不一定是100％准确.