APA (7th ed.) Zitazioa

Advertising Age's Business Marketing. Crain Communications Inc. (MI).

Chicago Style (17th ed.) Zitazioa

Advertising Age's Business Marketing. Crain Communications Inc. (MI).

MLA (9th ed.) Zitazioa

Advertising Age's Business Marketing. Crain Communications Inc. (MI).

Kontuz: berrikusi erreferentzia hauek erabili aurretik.