APA (7th ed.) Citation

Colfer, E. (2009). The eternity code. Hyperion Books.

Chicago Style (17th ed.) Citation

Colfer, Eoin. The Eternity Code. New York: Hyperion Books, 2009.

MLA (9th ed.) Citation

Colfer, Eoin. The Eternity Code. Hyperion Books, 2009.

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