APA (7th ed.) Citation

Card, O. S., & Johnston, A. (2013). Earth afire: The First Formic War (First edition.). Tor.

Chicago Style (17th ed.) Citation

Card, Orson Scott, and Aaron Johnston. Earth Afire: The First Formic War. First edition. New York: Tor, 2013.

MLA (9th ed.) Citation

Card, Orson Scott, and Aaron Johnston. Earth Afire: The First Formic War. First edition. Tor, 2013.