
- Author: G. Alan Tarr Robert F. Williams
- Language: English
- Year: 2006

- Author: Robert Gooding-Williams
- Language: English
- Year: 2009

- Author: Jacqueline Scott A. Todd Franklin Robert Gooding-Williams
- Language: English
- Year: 2006

- Author: Robert A. Williams Jr.
- Language: English
- Year: 1992

- Author: Leo M. Chalupa Robert W. Williams
- Language: English
- Year: 2008

- Author: C. Reid Nichols Robert G. Williams
- Language: English
- Year: 2008

- Author: Robert L. Williams II Douglas A. Lawrence
- Language: English
- Year: 2007