- Author: Mark R. Amstutz
- Language: English
- Year: 2017
- Author: Mark R. Amstutz
- Language: English
- Year: 2007
- Author: Mark R. Amstutz
- Language: English
- Year: 2005
- Author: Mark R. Amstutz
- Language: English
- Year: 2015
- Author: Mark R. Amstutz
- Language: English
- Year: 2013