Lynch, J. P., & Sabol, W. J. (1997). Did getting tough on crime pay? Urban Institute.
Cita Chicago Style (17a ed.)Lynch, James P., y William J. Sabol. Did Getting Tough on Crime Pay? Washington, DC: Urban Institute, 1997.
Cita MLA (9a ed.)Lynch, James P., y William J. Sabol. Did Getting Tough on Crime Pay? Urban Institute, 1997.
Precaución: Estas citas no son 100% exactas.