Cita APA (7a ed.)

Allen, J. L., Jr. (2000). Cardinal Ratzinger: The Vatican's enforcer of the faith. Continuum.

Cita Chicago Style (17a ed.)

Allen, John L., Jr. Cardinal Ratzinger: The Vatican's Enforcer of the Faith. New York: Continuum, 2000.

Cita MLA (8a ed.)

Allen, John L., Jr. Cardinal Ratzinger: The Vatican's Enforcer of the Faith. Continuum, 2000.