APA (7th ed.) Zitazioa

menzies, G. 1421: The year china discovered america. Perrenial.

Chicago Style (17th ed.) Zitazioa

menzies, Gavin. 1421: The Year China Discovered America. New York: Perrenial.

MLA (9th ed.) Zitazioa

menzies, Gavin. 1421: The Year China Discovered America. Perrenial.