Steden, R. V. (2007). Privatizing policing: Describing and explaining the growth of private security. Boom Jurische uitgevers.
शिकागो स्टाइल उद्धरणSteden, Ronald Van. Privatizing Policing: Describing and Explaining the Growth of Private Security. [Hauge, Netherlands]: Boom Jurische uitgevers, 2007.
एमएलए उद्धरणSteden, Ronald Van. Privatizing Policing: Describing and Explaining the Growth of Private Security. Boom Jurische uitgevers, 2007.
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