APA (7th ed.) Citation

Dennett, D. C. (2006). Breaking the spell: Religion as a natural phenomenon. Penguin.

Chicago Style (17th ed.) Citation

Dennett, D. C. Breaking the Spell: Religion as a Natural Phenomenon. London: Penguin, 2006.

MLA (8th ed.) Citation

Dennett, D. C. Breaking the Spell: Religion as a Natural Phenomenon. Penguin, 2006.

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