- Author: Gary A. Olson Todd W. Taylor
- Language: English
- Year: 1997
- Author: Gary M. Olson Ann Zimmerman Nathan Bos William Wulf
- Language: English
- Year: 2008
- Author: Gary A. Olson Lynn Worsham
- Language: English
- Year: 2003
- Author: Gary A. Olson
- Language: English
- Year: 2002
- Author: Gary M. Olson Ann Zimmerman Nathan Bos William Wulf
- Language: English
- Year: 2008