Sadongdong, M. A. (2021). Gov't mulls 24/7 vaccination vs. COVID-19. Manila Bulletin.
芝加哥风格引文Sadongdong, Martin A. "Gov't Mulls 24/7 Vaccination Vs. COVID-19." Manila Bulletin 2021.
MLA引文Sadongdong, Martin A. "Gov't Mulls 24/7 Vaccination Vs. COVID-19." Manila Bulletin, 2021.
警告：这些引文格式不一定是100％准确.