APA (7th ed.) Citation

Walker, M., & Mackenzie, R. I. (2012). The crowded grave (Unabridged.). Recorded Books Inc..

Chicago Style (17th ed.) Citation

Walker, Martin, and Robert Ian Mackenzie. The Crowded Grave. Unabridged. Prince Frederick: Recorded Books Inc., 2012.

MLA (8th ed.) Citation

Walker, Martin, and Robert Ian Mackenzie. The Crowded Grave. Unabridged. Recorded Books Inc., 2012.

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