De Vera, A. (2020). PH COVID-19 cases breach 100,000 mark. Manila Bulletin.
芝加哥风格引文De Vera, Analou. "PH COVID-19 Cases Breach 100,000 Mark." Manila Bulletin 2020.
MLA引文De Vera, Analou. "PH COVID-19 Cases Breach 100,000 Mark." Manila Bulletin, 2020.
警告：这些引文格式不一定是100％准确.