APA aipamena

Porcalla, D. (1997). Ozone victims cry out from the grave. Philippine Star.

Chicago Style aipamena

Porcalla, Delon. "Ozone Victims Cry Out from the Grave." Philippine Star 1997.

MLA aipamena

Porcalla, Delon. "Ozone Victims Cry Out from the Grave." Philippine Star, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.