APA (7th ed.) Zitazioa
TVE International. Parks or People. TVE International.
Chicago Style (17th ed.) Zitazioa
TVE International. Parks or People. TVE International.
MLA (9th ed.) Zitazioa
TVE International. Parks or People. TVE International.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.