- Author: Van Emden Richard
- Language: English
- Year: 2017
- Author: Van Emden Richard
- Language: English
- Year: 2014
- Author: Van Emden Richard
- Language: English
- Year: 2009
- Author: Van Emden Richard
- Language: English
- Year: 2016
- Author: Audible Inc., Telfer John, Van Emden Richard
- Language: English
- Year: 2017
- Author: van Emden Richard
- Language: English
- Year: 2016
- Author: Chambers Stephen J., Van Emden Richard
- Language: English
- Year: 2015
- Author: Helmut Fritz Van Emden, Richard Harrington
- Language: English
- Year: 2007