Valente, . C. . S. (2021). Palace: Covid-19 alert level system to cover entire PH starting Nov 22. Manila Times.
Citazione stile Chigago Style (17a edizione)Valente, Catherine S. "Palace: Covid-19 Alert Level System to Cover Entire PH Starting Nov 22." Manila Times 2021.
Citatione MLA (9a ed.)Valente, Catherine S. "Palace: Covid-19 Alert Level System to Cover Entire PH Starting Nov 22." Manila Times, 2021.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.