- Author: Robert A. Wiedemer, David Wiedemer, Cindy S. Spitzer
- Language: English
- Year: 2022
- Author: David Wiedemer, Robert A. Wiedemer, Cindy S. Spitzer
- Language: English
- Year: 2012
- Author: David Wiedemer Robert A. Wiedemer Cindy S. Spitzer
- Language: English
- Year: 2012
- Author: David Wiedemer Robert A. Wiedemer Cindy S. Spitzer
- Language: English
- Year: 2011
- Author: David Wiedemer Robert A. Wiedemer Cindy S. Spitzer
- Language: English
- Year: 2011
- Author: David Wiedemer Robert Wiedemer Cindy Spitzer Eric Janszen
- Language: English
- Year: 2006
- Author: David Wiedemer Robert Wiedemer Cindy Spitzer
- Language: English
- Year: 2009