APA (7th ed.) Citation

Grahame-Smith, S., & Berkrot, P. (2012). Unholy night. Hachette Audio.

Chicago Style (17th ed.) Citation

Grahame-Smith, Seth, and Peter Berkrot. Unholy Night. [New York]: Hachette Audio, 2012.

MLA (8th ed.) Citation

Grahame-Smith, Seth, and Peter Berkrot. Unholy Night. Hachette Audio, 2012.

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