Sadongdong, M. A. (2021). Ready for COVID-19 booster? Vaccine recipients now allowed to choose brand for third dose. Manila Bulletin.
芝加哥风格引文Sadongdong, Martin A. "Ready for COVID-19 Booster? Vaccine Recipients Now Allowed to Choose Brand for Third Dose." Manila Bulletin 2021.
MLA引文Sadongdong, Martin A. "Ready for COVID-19 Booster? Vaccine Recipients Now Allowed to Choose Brand for Third Dose." Manila Bulletin, 2021.
警告：这些引文格式不一定是100％准确.