- Author: Barry Ketley Mark Rolfe
- Language: English
- Year: 1999
- Author: Barry Ketley Mark Rolfe
- Language: German
- Year: 2000
- Author: Barry Ketley Mark Rolfe
- Language: English
- Year: 2001
- Author: Barry Ketley Mark Rolfe
- Language: English
- Year: 1996
- Author: Barry Ketley Mark Rolfe
- Language: English
- Year: 1999