- Author: Gerard M. Hill
- Language: English
- Year: 2013
- Author: Gerard M. Hill
- Language: English
- Year: 2008
- Author: Gerard M. Hill
- Language: English
- Year: 2009
- Author: Gerard M. Hill
- Language: English
- Year: 2007
- Author: Gerard M. Hill
- Language: English
- Year: 2007
- Author: Gerard M. Hill
- Language: English
- Year: 2003