APA (7th ed.) Citation

Hill, J., & Ledoux, D. (2007). 20th century ghosts. Harper Audio.

Chicago Style (17th ed.) Citation

Hill, Joe, and David Ledoux. 20th Century Ghosts. [New York]: Harper Audio, 2007.

MLA (8th ed.) Citation

Hill, Joe, and David Ledoux. 20th Century Ghosts. Harper Audio, 2007.

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