- Author: Peter Guppy Margaret Hughes
- Language: English
- Year: 1998
- Author: Arnold Hughes David Perfect
- Language: English
- Year: 2006
- Author: Judith M. Hughes
- Language: English
- Year: 2006
- Author: Andrew Kinder Rick Hughes Cary L. Cooper
- Language: English
- Year: 2008
- Author: Kyril Zinovieff Jenny Hughes
- Language: English
- Year: 2005