- Author: Shackleton Bailey David Roy
- Language: English
- Year: 1976
- Author: Robertson Noel
- Language: English
- Year: 2010
- Author: Robertson Noel
- Language: English
- Year: 2009
- Author: Robertson Noel
- Language: English
- Year: 2009
- Author: GailAnn Rickert.
- Language: English
- Year: 1989