- Author: Olegario González de Cardedal
- Language: Spanish
- Year: 2015
- Author: Olegario González de Cardedal
- Language: Spanish
- Year: 2005
- Author: Olegario González de Cardedal
- Language: Spanish
- Year: 2006
- Author: Olegario González de Cardedal
- Language: Spanish
- Year: 1970
- Author: Olegario González de Cardedal
- Language: Spanish
- Year: 2008