- Author: Robert Spencer
- Language: English
- Year: 2019
- Author: Robert Spencer
- Language: English
- Year: 2007
- Author: Robert Spencer, David Pryce-Jones
- Language: English
- Year: 2003
- Author: Robert Spencer, Ibn Warraq
- Language: English
- Year: 2005
- Author: Robert Spencer, David Pryce-Jones
- Language: English
- Year: 2003
- Author: Robert Spencer
- Language: English
- Year: 2005
- Author: Robert Spencer
- Language: English
- Year: 2005
- Author: Robert Spencer
- Language: English
- Year: 2005
- Author: Robert Spencer, Lloyd James
- Language: English
- Year: 2010
- Author: Robert Spencer
- Language: English
- Year: 2018