APA (7th ed.) Citation

Berenson, A., & Guidall, G. (2011). The secret soldier. Penguin Audio.

Chicago Style (17th ed.) Citation

Berenson, Alex, and George Guidall. The Secret Soldier. New York: Penguin Audio, 2011.

MLA (9th ed.) Citation

Berenson, Alex, and George Guidall. The Secret Soldier. Penguin Audio, 2011.

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