APA (7th ed.) Citation

Westerfeld, S., & Thompson, K. (2011). The Leviathan trilogy. Simon Pulse.

Chicago Style (17th ed.) Citation

Westerfeld, Scott, and Keith Thompson. The Leviathan Trilogy. New York: Simon Pulse, 2011.

MLA (9th ed.) Citation

Westerfeld, Scott, and Keith Thompson. The Leviathan Trilogy. Simon Pulse, 2011.