Citazione Stile APA (7a Edizione)

Espina, R. L. (2001). Hydrogen sulfide downs 36 students. IN The southern beat [column]. Philippine Star.

Citazione stile Chigago Style (17a edizione)

Espina, Rolly L. "Hydrogen Sulfide Downs 36 Students. IN The Southern Beat [column]." Philippine Star 2001.

Citatione MLA (9a ed.)

Espina, Rolly L. "Hydrogen Sulfide Downs 36 Students. IN The Southern Beat [column]." Philippine Star, 2001.