APA (7th ed.) Citation

De Keijzer & Burstein. (2009). Inside Angels & demons: The unauthorized guide to the bestselling novel. Vanguard Press.

Chicago Style (17th ed.) Citation

De Keijzer and Burstein. Inside Angels & Demons: The Unauthorized Guide to the Bestselling Novel. Philadelphia: Vanguard Press, 2009.

MLA (8th ed.) Citation

De Keijzer and Burstein. Inside Angels & Demons: The Unauthorized Guide to the Bestselling Novel. Vanguard Press, 2009.