Nichols, A. (2007). The thought of Pope Benedict XVI: An introduction to the theology of Joseph Ratzinger (New ed.). Burns & Oates.
Lua i Stíl Chicago (17ú heag.)Nichols, Aidan. The Thought of Pope Benedict XVI: An Introduction to the Theology of Joseph Ratzinger. New ed. London ; New York: Burns & Oates, 2007.
Lua MLA (9ú heag.)Nichols, Aidan. The Thought of Pope Benedict XVI: An Introduction to the Theology of Joseph Ratzinger. New ed. Burns & Oates, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.