- Author: Christopher Hughes
- Language: English
- Year: 2019
- Author: Christopher Hughes
- Language: English
- Year: 2020
- Author: Christopher Hughes
- Language: English
- Year: 2020
- Author: Christopher Hughes
- Language: English
- Year: 2020
- Author: Christopher Hughes
- Language: English
- Year: 2020
- Author: Christopher Hughes
- Language: English
- Year: 2011
- Author: Christopher Hughes Conn (auth.)
- Language: English
- Year: 2003
- Author: Christopher Hughes
- Language: Italian
- Year: 2005
- Author: Christopher Hughes
- Language: English
- Year: 2015
- Author: Christopher Hughes Conn
- Language: English
- Year: 2003