- Author: Stewart Liff, Pamela A. Posey
- Language: English
- Year: 2004
- Author: Paul Gustavson, stewart Liff
- Language: English
- Year: 2014
- Author: Stewart Liff
- Language: English
- Year: 2011
- Author: Stewart Liff
- Language: English
- Year: 2009
- Author: Stewart Liff
- Language: English
- Year: 2011
- Author: Stewart Liff
- Language: English
- Year: 2007
- Author: Stewart Liff
- Language: English
- Year: 2009
- Author: Stewart Liff
- Language: English
- Year: 2009