- Author: Robert Spencer
- Language: English
- Year: 2013
- Author: Spencer Robert
- Language: English
- Year: 2012
- Author: David Horowitz, Robert Spencer
- Language: English
- Year: 2011
- Author: Horowitz David, Spencer Robert
- Language: English
- Year: 2011
- Author: Spencer Robert, Horowitz David
- Language: English
- Year: 2011
- Author: Spencer Robert, Horowitz David
- Language: English
- Year: 2011
- Author: Robert Spencer
- Language: English
- Year: 2013