De Vera, A. (2022). 40.6 million Filipinos yet to receive Covid booster shots. Manila Bulletin.
芝加哥风格引文De Vera, Analou. "40.6 Million Filipinos yet to Receive Covid Booster Shots." Manila Bulletin 2022.
MLA引文De Vera, Analou. "40.6 Million Filipinos yet to Receive Covid Booster Shots." Manila Bulletin, 2022.
警告：这些引文格式不一定是100％准确.