- Author: Daniel Loxton, Donald R. Prothero, Michael Shermer
- Language: English
- Year: 2013
- Author: Daniel Loxton, Donald R. Prothero, Michael Shermer
- Language: English
- Year: 2013
- Author: Daniel Loxton Donald R. Prothero Michael Shermer
- Language: English
- Year: 2013
- Author: Daniel Loxton Donald R. Prothero Michael Shermer
- Language: English
- Year: 2013