APA (7th ed.) Zitazioa

Operations & Fulfillment. Endeavor Business Media.

Chicago Style (17th ed.) Zitazioa

Operations & Fulfillment. Endeavor Business Media.

MLA (9th ed.) Zitazioa

Operations & Fulfillment. Endeavor Business Media.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.