APA (7th ed.) Zitazioa

Cullum, R. The Men Who Wrought.

Chicago Style (17th ed.) Zitazioa

Cullum, Ridgwell. The Men Who Wrought.

MLA (9th ed.) Zitazioa

Cullum, Ridgwell. The Men Who Wrought.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.