APA (7th ed.) Zitazioa
Town and Country: Vol. 134, no. 5007, November 1980. The Hearst Corporation.
Chicago Style (17th ed.) Zitazioa
Town and Country: Vol. 134, No. 5007, November 1980. Nueva York, EUA: The Hearst Corporation.
MLA (9th ed.) Zitazioa
Town and Country: Vol. 134, No. 5007, November 1980. The Hearst Corporation.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.