Kelling, G. L. (1974). The Kansas City preventive patrol experiment: A summary report. Police Foundation.
Cita Chicago Style (17a ed.)Kelling, George L. The Kansas City Preventive Patrol Experiment: A Summary Report. Washington, D.C: Police Foundation, 1974.
Cita MLA (9a ed.)Kelling, George L. The Kansas City Preventive Patrol Experiment: A Summary Report. Police Foundation, 1974.
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