Cita APA (7a ed.)

Villiers, P. (2009). Police and policing: An introduction. Waterside.

Cita Chicago Style (17a ed.)

Villiers, Peter. Police and Policing: An Introduction. Hook: Waterside, 2009.

Cita MLA (8a ed.)

Villiers, Peter. Police and Policing: An Introduction. Waterside, 2009.