Varwell, D. W. (1978). Police and the public. Macdonald Evans.
Cita Chicago Style (17a ed.)Varwell, Dennis W. Police and the Public. Plymouth: Macdonald Evans, 1978.
Cita MLA (8a ed.)Varwell, Dennis W. Police and the Public. Macdonald Evans, 1978.
Precaución: Estas citas no son 100% exactas.