- Author: Julio A Gonzalo, Manuel M Carreira
- Language: English
- Year: 2013
- Author: Julio A. Gonzalo, Manuel Mª Carreira SJ
- Language: English
- Year: 2012
- Author: Julio A Gonzalo
- Language: English
- Year: 2015
- Author: Julio A Gonzalo
- Language: English
- Year: 2015
- Author: Julio A. Gonzalo
- Language: English
- Year: 2008
- Author: Julio A Gonzalo, Basilio Jiménez
- Language: English
- Year: 2005
- Author: Julio A. Gonzalo
- Language: English
- Year: 2006
- Author: Julio A Gonzalo
- Language: English
- Year: 2008
- Author: Julio A. Gonzalo
- Language: English
- Year: 2008