APA (7th ed.) Citation

Keyes, M., & Donnelly, T. (2006). Anybody out there? Harper Audio.

Chicago Style (17th ed.) Citation

Keyes, Marian, and Terry Donnelly. Anybody Out There? New York: Harper Audio, 2006.

MLA (8th ed.) Citation

Keyes, Marian, and Terry Donnelly. Anybody Out There? Harper Audio, 2006.

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