APA (7th ed.) Citation

Wolfe, T., & Petkoff, R. (2016). The kingdom of speech (Unabridged.). Hachette Audio.

Chicago Style (17th ed.) Citation

Wolfe, Tom, and Robert Petkoff. The Kingdom of Speech. Unabridged. New York, NY: Hachette Audio, 2016.

MLA (8th ed.) Citation

Wolfe, Tom, and Robert Petkoff. The Kingdom of Speech. Unabridged. Hachette Audio, 2016.

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