- Author: Jacques Vallee
- Language: Portuguese
- Year: 1991
- Author: Jacques Vallee
- Language: Portuguese
- Year: 1988
- Author: Jacques Vallee
- Language: English
- Year: 1990
- Author: Jacques Vallee
- Language: English
- Year: 2019
- Author: Jacques Vallee
- Language: English
- Year: 2014
- Author: Jacques Vallee
- Language: English
- Year: 1992
- Author: Jacques Vallee
- Language: English
- Year: 2014
- Author: Jacques Vallee
- Language: English
- Year: 1975
- Author: Jacques Vallee
- Language: English
- Year: 1975
- Author: Jacques Vallee
- Language: English
- Year: 2008