Chalfin, A., & McCrary, J. (2013). The Effect of Police on Crime: New Evidence from U.S. Cities, 1960-2010. National Bureau of Economic Research.
Cita Chicago Style (17a ed.)Chalfin, Aaron, y Justin McCrary. The Effect of Police on Crime: New Evidence from U.S. Cities, 1960-2010. National Bureau of Economic Research, 2013.
Cita MLA (9a ed.)Chalfin, Aaron, y Justin McCrary. The Effect of Police on Crime: New Evidence from U.S. Cities, 1960-2010. National Bureau of Economic Research, 2013.
Precaución: Estas citas no son 100% exactas.