APA (7th ed.) Zitazioa

O'Neill, J. (1991). Martín Lutero. Akal.

Chicago Style (17th ed.) Zitazioa

O'Neill, Judith. Martín Lutero. Madrid: Akal, 1991.

MLA (9th ed.) Zitazioa

O'Neill, Judith. Martín Lutero. Akal, 1991.