Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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