APA (7th ed.) Citation

Sullivan, T., Maiken, P. T., & Olsen, G. (2023). Killer clown: The John Wayne Gacy murders (40th anniversary edition.). Citadel Press, Kensington Publishing Corp.

Chicago Style (17th ed.) Citation

Sullivan, Terry, Peter T. Maiken, and Gregg Olsen. Killer Clown: The John Wayne Gacy Murders. 40th anniversary edition. New York, NY: Citadel Press, Kensington Publishing Corp, 2023.

MLA (8th ed.) Citation

Sullivan, Terry, et al. Killer Clown: The John Wayne Gacy Murders. 40th anniversary edition. Citadel Press, Kensington Publishing Corp, 2023.