- Author: Antonio T. de Nicolas Raimundo Panikkar
- Language: English
- Year: 1976
- Author: Raimundo Panikkar
- Language: English
- Year: 1989
- Author: Raimundo Panikkar
- Language: English
- Year: 1980
- Author: Raimundo Panikkar
- Language: English
- Year: 1989
- Author: Raimundo Panikkar
- Language: Spanish