- Author: Gordon Williamson Ian Palmer
- Language: English
- Year: 2003
- Author: Gordon Williamson Ramiro Bujeiro
- Language: English
- Year: 2002
- Author: Gordon Williamson Velimir Vuksic
- Language: English
- Year: 2002
- Author: Gordon Williamson John White
- Language: English
- Year: 2001
- Author: Gordon Williamson Ramiro Bujeiro
- Language: English
- Year: 2005
- Author: Gordon Williamson Ronald Volstad
- Language: English
- Year: 1989
- Author: Gordon Williamson Osprey
- Language: English
- Author: Gordon Williamson Ian Palmer
- Language: English
- Year: 2002
- Author: Gordon Williamson
- Language: English
- Author: Gordon Williamson Stephen Andrew
- Language: English
- Year: 2004