- Author: Gordon Ronni L, Stillman David M
- Language: English
- Year: 2010
- Author: Stillman David M., Gordon Ronni L
- Language: English
- Year: 2011
- Author: Stillman David M., Ebrary Inc., Gordon Ronni L
- Language: English
- Year: 2004
- Author: Gordon Ronni L., Stillman David M
- Language: English
- Year: 2015