Tiangco, M. K. S. (2021). Manila begins vaccinating senior citizens against COVID-19. Manila Bulletin.
Cita Chicago (17th ed.)Tiangco, Minka Klaudia S. "Manila Begins Vaccinating Senior Citizens Against COVID-19." Manila Bulletin 2021.
Cita MLA (9th ed.)Tiangco, Minka Klaudia S. "Manila Begins Vaccinating Senior Citizens Against COVID-19." Manila Bulletin, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.