Casinas, J. A. (2021). Metro Manila's daily COVID-19 vaccination hits 231,000 jabs. Manila Bulletin.
芝加哥风格引文Casinas, Jhon Aldrin. "Metro Manila's Daily COVID-19 Vaccination Hits 231,000 Jabs." Manila Bulletin 2021.
MLA引文Casinas, Jhon Aldrin. "Metro Manila's Daily COVID-19 Vaccination Hits 231,000 Jabs." Manila Bulletin, 2021.
警告：这些引文格式不一定是100％准确.