APA (7. basım) Alıntı

Calayag, K. (2021). PH buys 40M doses of Pfizer vaccine. Manila Times.

Chicago Style (17. basım) Atıf

Calayag, Keith. "PH Buys 40M Doses of Pfizer Vaccine." Manila Times 2021.

MLA (9th ed.) Atıf

Calayag, Keith. "PH Buys 40M Doses of Pfizer Vaccine." Manila Times, 2021.