APA (7th ed.) Zitazioa
Arndt, R. Aramco World: September - October 1997, vol. 48, no. 5 : Riding the Forty Days' Road. Aramco Services.
Chicago Style (17th ed.) Zitazioa
Arndt, Robert. Aramco World: September - October 1997, Vol. 48, No. 5 : Riding the Forty Days' Road. Houston, EUA: Aramco Services.
MLA (9th ed.) Zitazioa
Arndt, Robert. Aramco World: September - October 1997, Vol. 48, No. 5 : Riding the Forty Days' Road. Aramco Services.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.