APA (7th ed.) Zitazioa
TVE international. (1992). Five realities of the future. TVE International..
Chicago Style (17th ed.) Zitazioa
TVE international. Five Realities of the Future. Netherlands: TVE International., 1992.
MLA (9th ed.) Zitazioa
TVE international. Five Realities of the Future. TVE International., 1992.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.