- Author: Charles Darwin / Karolo Darvino
- Language: Esperanto
- Author: Pierre Janton Humphrey Tonkin Jane Edwards Karen Johnson-Weiner
- Language: English, Esperanto
- Year: 1993
- Author: David Richardson
- Language: English, Esperanto
- Year: 1988
- Author: David Richardson
- Language: English, Esperanto
- Year: 1990
- Author: Antonio Gude Fernández
- Language: Esperanto
- Year: 2008
- Author: Antonio Gude
- Language: Esperanto
- Year: 2004
- Author: John Kenneth Galbraith
- Language: Esperanto
- Year: 1987
- Author: Mayer René
- Language: Esperanto
- Year: 2003
- Author: Заменгоф Л.
- Language: Русский, Esperanto