Cita APA (7a ed.)

Emsley, C. (2006). Police detectives in history, 1750 - 1950. Ashgate.

Cita Chicago Style (17a ed.)

Emsley, Clive. Police Detectives in History, 1750 - 1950. Aldershot [u.a.]: Ashgate, 2006.

Cita MLA (8a ed.)

Emsley, Clive. Police Detectives in History, 1750 - 1950. Ashgate, 2006.