Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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