APA (7th ed.) Citation

Blatty, W. P. (2011). The exorcist (40th anniversary ed.). Harper.

Chicago Style (17th ed.) Citation

Blatty, William Peter. The Exorcist. 40th anniversary ed. New York: Harper, 2011.

MLA (8th ed.) Citation

Blatty, William Peter. The Exorcist. 40th anniversary ed. Harper, 2011.

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