APA (7th ed.) Zitazioa

Gadsden Purchase Treaty. Great Neck Publishing.

Chicago Style (17th ed.) Zitazioa

Gadsden Purchase Treaty. Great Neck Publishing.

MLA (9th ed.) Zitazioa

Gadsden Purchase Treaty. Great Neck Publishing.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.