- Author: Peter White
- Language: English
- Year: 1993
- Author: Tony Townsend
- Language: English
- Year: 1998
- Author: Neville Jones Tim Southgate
- Language: English
- Year: 1990
- Author: Barry Sandywell
- Language: English
- Year: 1996
- Author: Sonia Blandford
- Language: English
- Year: 1998
- Author: Ian McCallum Ray Sumner
- Language: English
- Year: 1999