APA (7th ed.) Zitazioa

Brondsted, J. (1965). The vikings. Penguin Books.

Chicago Style (17th ed.) Zitazioa

Brondsted, Johannes. The Vikings. Londres: Penguin Books, 1965.

MLA (9th ed.) Zitazioa

Brondsted, Johannes. The Vikings. Penguin Books, 1965.