- Author: Davies Paul C. W., Barrow John D., Harper Charles L., Wheeler John Archibald
- Language: English
- Year: 2005
- Author: Rauscher Elizabeth A., Amoroso Richard L
- Language: English
- Year: 2009
- Author: Erich Harth
- Language: English
- Year: 1993
- Author: Ross Hugh Norman
- Language: English
- Year: 2001