Cita APA (7a ed.)

Quinn, J. R. (1999). The Reform of the Papacy: The Costly Call to Christian unity. The Crossroad Publishing Company.

Cita Chicago Style (17a ed.)

Quinn, John R. The Reform of the Papacy: The Costly Call to Christian Unity. New York: The Crossroad Publishing Company, 1999.

Cita MLA (9a ed.)

Quinn, John R. The Reform of the Papacy: The Costly Call to Christian Unity. The Crossroad Publishing Company, 1999.