Mendoza, . R. (2020). Manufacturers assure safe Covid-19 vaccine. Manila Times.
Chicago-referens (17:e uppl.)Mendoza, Red. "Manufacturers Assure Safe Covid-19 Vaccine." Manila Times 2020.
MLA-referens (9:e uppl.)Mendoza, Red. "Manufacturers Assure Safe Covid-19 Vaccine." Manila Times, 2020.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.