Niebuhr, K., & Wallace, R. W. (2009). The Catholic Epistles and Apostolic Tradition. Baylor Univ. Press.
Citazione stile Chigago Style (17a edizione)Niebuhr, Karl-Wilhelm, e Robert W. Wallace. The Catholic Epistles and Apostolic Tradition. Waco, Texas: Baylor Univ. Press, 2009.
Citatione MLA (8a ed.)Niebuhr, Karl-Wilhelm, e Robert W. Wallace. The Catholic Epistles and Apostolic Tradition. Baylor Univ. Press, 2009.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.