Foz, V. B. (1999). Clean Air Act fails to ban other sources of dioxin. Philippine Star.
Chicago Style aipamenaFoz, Vicente B. "Clean Air Act Fails to Ban Other Sources of Dioxin." Philippine Star 1999.
MLA aipamenaFoz, Vicente B. "Clean Air Act Fails to Ban Other Sources of Dioxin." Philippine Star, 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.