De Vera, A. (2021). Gov't targets 7 M in second vaccine drive. Manila Bulletin.
芝加哥风格引文De Vera, Analou. "Gov't Targets 7 M in Second Vaccine Drive." Manila Bulletin 2021.
MLA引文De Vera, Analou. "Gov't Targets 7 M in Second Vaccine Drive." Manila Bulletin, 2021.
警告：这些引文格式不一定是100％准确.