- Author: Robert F. Dorr
- Language: English
- Year: 2007
- Author: Robert F. Dorr, Thomas Jones
- Language: English
- Year: 2010
- Author: Robert F. Dorr Mark Styling
- Language: English
- Year: 2003
- Author: Robert F. Dorr Mark Styling
- Language: English
- Year: 2003
- Author: Robert F. Dorr
- Language: English
- Year: 2002
- Author: Robert F. Dorr Mark Rolfe
- Language: English
- Year: 2000
- Author: Robert F. Dorr, Mark Rolfe(Illustrator)
- Language: English
- Year: 1999
- Author: Robert F. Dorr, Mark Rolfe(Illustrator)
- Language: English
- Year: 1999
- Author: Robert F. Dorr Mark Rolfe
- Language: English
- Year: 2000
- Author: Robert F. Dorr
- Language: English
- Year: 1991