- Author: Nigel Warburton
- Language: English
- Year: 2006
- Author: Nigel Warburton
- Language: English
- Year: 1999
- Author: Nigel Warburton
- Language: English
- Year: 2000
- Author: Nigel Warburton
- Language: English
- Year: 2004
- Author: Nigel Warburton
- Language: English
- Year: 1999