- Author: Joseph Ratzinger (Benedicto XVI)
- Language: Spanish
- Year: 2012
- Author: Joseph Ratzinger
- Language: English
- Year: 1999
- Author: Joseph Ratzinger Peter Seewald
- Language: English
- Year: 2002
- Author: Jürgen Habermas, Jurgen Habermas, Joseph Ratzinger
- Language: Spanish
- Year: 2008
- Author: Joseph Ratzinger
- Language: Spanish
- Year: 2012
- Author: Benedict XVI (Joseph Ratzinger)
- Language: English
- Author: Joseph ratzinger
- Language: Spanish
- Year: 2012
- Author: Joseph ratzinger
- Language: Spanish
- Year: 2005
- Author: Joseph ratzinger
- Language: Spanish
- Year: 1983
- Author: Joseph Ratzinger, Mark Brumley, Matthew Levering, Thomas Harmon
- Language: English
- Year: 2007