APA aipamena

Perez, T. (1997). Ozone revisited. Philippine Star.

Chicago Style aipamena

Perez, Tony. "Ozone Revisited." Philippine Star 1997.

MLA aipamena

Perez, Tony. "Ozone Revisited." Philippine Star, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.