APA (7th ed.) Citation

Roland, P. (2021). Killer psychopaths: The inside story of criminal profiling. Arcturus Holdings Limited.

Chicago Style (17th ed.) Citation

Roland, Paul. Killer Psychopaths: The Inside Story of Criminal Profiling. London: Arcturus Holdings Limited, 2021.

MLA (9th ed.) Citation

Roland, Paul. Killer Psychopaths: The Inside Story of Criminal Profiling. Arcturus Holdings Limited, 2021.

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