APA (7th ed.) Zitazioa
Christopher, M. Logistics & supply chain management. Pearson.
Chicago Style (17th ed.) Zitazioa
Christopher, Martin. Logistics & Supply Chain Management. Pearson.
MLA (9th ed.) Zitazioa
Christopher, Martin. Logistics & Supply Chain Management. Pearson.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.