APA-viite (7. p.)
Nichols, A. (2007). The thought of Pope Benedict XVI: An introduction to the theology of Joseph Ratzinger (New ed.). Burns & Oates.
Chicago-viite (17. p.)
Nichols, Aidan. The Thought of Pope Benedict XVI: An Introduction to the Theology of Joseph Ratzinger. New ed. London ; New York: Burns & Oates, 2007.
MLA-viite (9. p.)
Nichols, Aidan. The Thought of Pope Benedict XVI: An Introduction to the Theology of Joseph Ratzinger. New ed. Burns & Oates, 2007.
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