- Author: Gardner Martin, Smullyan Raymond M., Bucke Richard Maurice
- Language: English
- Year: 2003
- Author: Raymond M. Smullyan
- Language: English
- Year: 1961
- Author: Raymond M. Smullyan
- Language: English
- Year: 1980
- Author: Raymond M. Smullyan
- Language: English
- Year: 1981
- Author: Raymond Smullyan
- Language: Spanish
- Year: 1987
- Author: RAYMOND M SMULLYAN
- Language: English
- Year: 2016
- Author: Raymond Smullyan
- Language: Italian
- Year: 1994
- Author: Smullyan Raymond M
- Language: English
- Year: 2003
- Author: Смаллиан Р. (Smullyan R.)
- Language: Русский
- Year: 1981
- Author: Smullyan Raymond M
- Language: English
- Year: 2015