- Author: Raymond Smullyan
- Language: English
- Author: Raymond Smullyan
- Language: English
- Author: Raymond Smullyan
- Language: English
- Author: Raymond Smullyan
- Language: Hungarian
- Year: 2013
- Author: Raymond Smullyan
- Language: Hungarian
- Year: 2016
- Author: Raymond Smullyan
- Language: English
- Year: 2017
- Author: Raymond Smullyan (Author)
- Year: 2008
- Author: Raymond Smullyan
- Language: Spanish
- Year: 1987
- Author: Raymond Smullyan
- Language: Italian
- Year: 1994
- Author: Raymond Smullyan
- Language: Italian
- Year: 1988