APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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