Allen, J. L., Jr. (2000). Cardinal Ratzinger: The Vatican's enforcer of the faith. Continuum.
Chicago Style aipamenaAllen, John L., Jr. Cardinal Ratzinger: The Vatican's Enforcer of the Faith. New York: Continuum, 2000.
MLA aipamenaAllen, John L., Jr. Cardinal Ratzinger: The Vatican's Enforcer of the Faith. Continuum, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.