APA (7th ed.) Zitazioa
Gulf Bank K.S.C.P MarketLine Company Profile. Marketline.
Chicago Style (17th ed.) Zitazioa
Gulf Bank K.S.C.P MarketLine Company Profile. Marketline.
MLA (9th ed.) Zitazioa
Gulf Bank K.S.C.P MarketLine Company Profile. Marketline.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.