APA (7th ed.) Citation

Gabriel, B. (2008). They must be stopped: Why we must defeat radical Islam and how we can do it. St. Martin's Press.

Chicago Style (17th ed.) Citation

Gabriel, Brigitte. They Must Be Stopped: Why We Must Defeat Radical Islam and How We Can Do It. New York: St. Martin's Press, 2008.

MLA (8th ed.) Citation

Gabriel, Brigitte. They Must Be Stopped: Why We Must Defeat Radical Islam and How We Can Do It. St. Martin's Press, 2008.

Warning: These citations may not always be 100% accurate.