- Author: Christopher R. Hughes Gudrun Wacker (editors)
- Language: English
- Year: 2003
- Author: Diarmaid Hughes Dan I. Andersson
- Language: English
- Year: 2001
- Author: William Beinart Lotte Hughes
- Language: English
- Year: 2007
- Author: Joe Hughes
- Language: English
- Year: 2008
- Author: Richard Hughes Seager
- Language: English
- Year: 2000
- Author: Ann Hughes
- Language: English
- Year: 2002
- Author: Mike Hughes
- Language: English
- Year: 2004
- Author: Peter Hughes
- Language: English
- Year: 2006
- Author: Esperanza Bielsa Christopher W. Hughes
- Language: English
- Year: 2009