APA (7th ed.) Zitazioa
Deutsche Numis MarketLine Company Profile. Marketline.
Chicago Style (17th ed.) Zitazioa
Deutsche Numis MarketLine Company Profile. Marketline.
MLA (9th ed.) Zitazioa
Deutsche Numis MarketLine Company Profile. Marketline.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.