- Author: Richard Leakey Roger Lewin
- Language: Turkish
- Year: 1998
- Author: Richard Leakey Roger Lewin
- Language: Spanish
- Year: 1997
- Author: Richard Leakey Roger Lewin
- Language: English
- Year: 1996
- Author: Richard Leakey Roger Lewin
- Language: Spanish
- Year: 1998