Cita APA (7th ed.)

Villanueva, M. A. (2021). COVID-19 test first before vaccinating?. IN Commonsense [column]. Philippine Star.

Cita Chicago (17th ed.)

Villanueva, Marichu A. "COVID-19 Test First Before Vaccinating?. IN Commonsense [column]." Philippine Star 2021.

Cita MLA (9th ed.)

Villanueva, Marichu A. "COVID-19 Test First Before Vaccinating?. IN Commonsense [column]." Philippine Star, 2021.

Atenció: Aquestes cites poden no estar 100% correctes.