Cita APA (7a ed.)

Ratcliffe, J. (2008). Intelligence-led policing. Willan.

Cita Chicago Style (17a ed.)

Ratcliffe, Jerry. Intelligence-led Policing. Cullompton [u.a.]: Willan, 2008.

Cita MLA (8a ed.)

Ratcliffe, Jerry. Intelligence-led Policing. Willan, 2008.