- Author: Robert Allen Meyers
- Language: English
- Year: 2005
- Author: Robert Allen Meyers
- Language: English
- Year: 2007
- Author: Robert Allen Rutland
- Language: English
- Year: 1996
- Author: Robert Allen Rouse
- Language: English
- Year: 2005
- Author: Robert Allen
- Language: English
- Year: 2004
- Author: Robert Allen
- Language: English
- Year: 2004
- Author: Robert Allen
- Language: English
- Year: 1995
- Author: Robert Allen Houston Ian D. Whyte
- Language: English
- Year: 2005
- Author: Robert Allen
- Language: English
- Year: 1996
- Author: Robert Allen Meyers
- Language: English
- Year: 2001