Spence, G. (2015). Police state: How America's cops get away with murder (First Edition.). St. Martin's Press.
Cita Chicago Style (17a ed.)Spence, Gerry. Police State: How America's Cops Get Away with Murder. First Edition. New York: St. Martin's Press, 2015.
Cita MLA (8a ed.)Spence, Gerry. Police State: How America's Cops Get Away with Murder. First Edition. St. Martin's Press, 2015.
Precaución: Estas citas no son 100% exactas.