Casinas, J. A. (2021). Enforce 10-day quarantine for arriving international travelers-health expert. Manila Bulletin.
芝加哥风格引文Casinas, Jhon Aldrin. "Enforce 10-day Quarantine for Arriving International Travelers-health Expert." Manila Bulletin 2021.
MLA引文Casinas, Jhon Aldrin. "Enforce 10-day Quarantine for Arriving International Travelers-health Expert." Manila Bulletin, 2021.
警告：这些引文格式不一定是100％准确.