- Author: Claudia Johnson
- Language: English
- Year: 2004
- Author: George Hart, Scott Slovic, Scott Slovic
- Language: English
- Year: 2004
- Author: Charles E. Wilson Jr.
- Language: English
- Year: 2005
- Author: Claudia Durst Johnson
- Language: English
- Year: 2006
- Author: Claudia Durst Johnson
- Language: English
- Year: 2006