
- Author: Brian Clegg
- Language: English
- Year: 2002

- Author: Brian Clegg
- Language: English
- Year: 2002

- Author: Brian Clegg
- Language: English
- Year: 2007

- Author: Brian Clegg
- Language: English
- Year: 2006

- Author: Brian Clegg
- Language: English
- Year: 2002

- Author: Brian Clegg Paul Birch
- Language: English
- Year: 2007