Cita APA (7a ed.)

Knight, S. (1976). Jack the Ripper: The final solution. Harrap.

Cita Chicago Style (17a ed.)

Knight, Stephen. Jack the Ripper: The Final Solution. London: Harrap, 1976.

Cita MLA (9a ed.)

Knight, Stephen. Jack the Ripper: The Final Solution. Harrap, 1976.