- Author: Craig Robertson
- Language: German
- Year: 2011
- Author: Monty S. Duggal M.E.J. Curzon S.A. Fayle M.A. Pollard A.J. Robertson
- Language: English
- Year: 2002
- Author: William C. Robertson
- Language: English
- Year: 2005
- Author: William C. Robertson
- Language: English
- Year: 2002
- Author: William C. Robertson
- Language: English
- Year: 2006
- Author: William C. Robertson Brian Diskin
- Language: English
- Year: 2004
- Author: Charles T. Ii Robertson Mark Warda
- Language: English
- Year: 2001
- Author: Ivan T. Robertson Militza Callinan Dave Bartram
- Language: English
- Year: 2002
- Author: Robertson Davies
- Language: English
- Year: 1977