APA (7th ed.) Citation

Douglas, J. E. (1997). Journey into darkness: Follow the FBI's premier investigative profiler as he penetrates the minds and motives of the most terrifying serial killers. Scribner.

Chicago Style (17th ed.) Citation

Douglas, John E. Journey into Darkness: Follow the FBI's Premier Investigative Profiler as He Penetrates the Minds and Motives of the Most Terrifying Serial Killers. New York, NY: Scribner, 1997.

MLA (8th ed.) Citation

Douglas, John E. Journey into Darkness: Follow the FBI's Premier Investigative Profiler as He Penetrates the Minds and Motives of the Most Terrifying Serial Killers. Scribner, 1997.