Cita APA (7a ed.)

Farnell, F. J. (1920). Detective versus the Psychopath.

Cita Chicago Style (17a ed.)

Farnell, Frederic J. Detective Versus the Psychopath. 1920.

Cita MLA (9a ed.)

Farnell, Frederic J. Detective Versus the Psychopath. 1920.