APA (7th ed.) Citation

Rollins, J. (2009). The doomsday key. HarperCollins Publishers.

Chicago Style (17th ed.) Citation

Rollins, James. The Doomsday Key. New York: HarperCollins Publishers, 2009.

MLA (9th ed.) Citation

Rollins, James. The Doomsday Key. HarperCollins Publishers, 2009.

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