Gaya APA

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

Gaya MLA

Allen, John, L.,, Jr.. "Cardinal Ratzinger: The Vatican's enforcer of the faith. ". New York & London: New York & London Continuum, 2000. Buku.