APA (7th ed.) Zitazioa

Crain's Small Business -- Chicago Edition. Crain Communications Inc. (MI).

Chicago Style (17th ed.) Zitazioa

Crain's Small Business -- Chicago Edition. Crain Communications Inc. (MI).

MLA (9th ed.) Zitazioa

Crain's Small Business -- Chicago Edition. Crain Communications Inc. (MI).

Kontuz: berrikusi erreferentzia hauek erabili aurretik.