- Author: Stephen P. Turner Regis A. Factor
- Language: English
- Year: 2005
- Author: Stephen P. Turner Regis A. Factor
- Language: English
- Year: 1994
- Author: Stephen P. Turner Regis A. Factor
- Language: English
- Year: 1994
- Author: Stephen P. Turner Regis A. Factor
- Language: English
- Year: 1994