Cita APA (7a ed.)

Clarke, R. V. (1980). The effectiveness of policing. Gower.

Cita Chicago Style (17a ed.)

Clarke, Ronald V. The Effectiveness of Policing. Westmead [u.a.]: Gower, 1980.

Cita MLA (9a ed.)

Clarke, Ronald V. The Effectiveness of Policing. Gower, 1980.