Cita APA (7a ed.)

O'Collins, G., & Farrugia, M. (2015). Catholicism: The story of Catholic christianity (2nd ed.). Oxford University Press.

Cita Chicago Style (17a ed.)

O'Collins, Gerald, y Mario Farrugia. Catholicism: The Story of Catholic Christianity. 2nd ed. New York: Oxford University Press, 2015.

Cita MLA (9a ed.)

O'Collins, Gerald, y Mario Farrugia. Catholicism: The Story of Catholic Christianity. 2nd ed. Oxford University Press, 2015.