APA (7th ed.) Citation

Card, O. S., Johnston, A., & Rudnicki, S. (2012). Earth unaware: The First Formic War. Macmillan Audio.

Chicago Style (17th ed.) Citation

Card, Orson Scott, Aaron Johnston, and Stefan Rudnicki. Earth Unaware: The First Formic War. New York: Macmillan Audio, 2012.

MLA (8th ed.) Citation

Card, Orson Scott, et al. Earth Unaware: The First Formic War. Macmillan Audio, 2012.

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