Kelling, G. L. (1999). "Broken windows" and police discretion. U.S. Department of Justice.
Cita Chicago Style (17a ed.)Kelling, George L. "Broken Windows" and Police Discretion. Washington, DC: U.S. Department of Justice, 1999.
Cita MLA (8a ed.)Kelling, George L. "Broken Windows" and Police Discretion. U.S. Department of Justice, 1999.
Precaución: Estas citas no son 100% exactas.