Greenberg, M. A. (2015). American volunteer police: Mobilizing for security. CRC Press.
Cita Chicago Style (17a ed.)Greenberg, Martin Alan. American Volunteer Police: Mobilizing for Security. Boca Raton [u.a.]: CRC Press, 2015.
Cita MLA (9a ed.)Greenberg, Martin Alan. American Volunteer Police: Mobilizing for Security. CRC Press, 2015.
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