APA (7th ed.) Zitazioa

Wallbank. Civilization Past and Present (5th ed.). Cambridge / Routledge / Oxford.

Chicago Style (17th ed.) Zitazioa

Wallbank. Civilization Past and Present. 5th ed. London / New York: Cambridge / Routledge / Oxford.

MLA (9th ed.) Zitazioa

Wallbank. Civilization Past and Present. 5th ed. Cambridge / Routledge / Oxford.