
- Author: Jeffrey W. Knopf, Scott A. Jones, William Keller
- Language: English
- Year: 2016

- Author: Jeffrey R. Fields, William Keller, Scott Jones
- Language: English
- Year: 2014

- Author: Aaron Franklin Brantly William Keller Scott Jones
- Language: English
- Year: 2016

- Author: William Keller, Kurt Keller
- Language: English
- Year: 2004

- Author: William Keller
- Language: English
- Year: 2001

- Author: William Keller
- Language: English
- Year: 2001