- Author: Kathryn Petras, Ross Petras
- Language: English
- Year: 2013
- Author: Kathryn Petras, Ross Petras
- Language: English
- Year: 2004
- Author: Kathryn Petras, Ross Petras
- Language: English
- Year: 2011
- Author: Kathryn Petras, Ross Petras
- Language: English
- Year: 2010
- Author: Kathryn Petras Ross Petras
- Language: English
- Year: 2009
- Author: Kathryn Petras Ross Petras
- Language: English
- Year: 2010
- Author: Kathryn Petras, Ross Petras
- Language: English
- Year: 2021
- Author: Kathryn Petras, Ross Petras
- Language: English
- Year: 2021
- Author: Kathryn Petras Ross Petras
- Language: English