Braga, A. A., Piehl, A. M., Waring, E. J., & Kennedy, D. M. (2001). Problem-oriented policing, deterrence, and youth violence: An evaluation of Boston's Operation Ceasefire. Journal of research in crime and delinquency, 38(3), 195-225. doi:10.1177/0022427801038003001
Cita Chicago Style (17a ed.)Braga, Anthony Allan, Anne Morrison Piehl, Elin J. Waring, y David M. Kennedy. "Problem-oriented Policing, Deterrence, and Youth Violence: An Evaluation of Boston's Operation Ceasefire." Journal of Research in Crime and Delinquency 38, no. 3 (2001): 195-225. https://doi.org/10.1177/0022427801038003001.
Cita MLA (9a ed.)Braga, Anthony Allan, et al. "Problem-oriented Policing, Deterrence, and Youth Violence: An Evaluation of Boston's Operation Ceasefire." Journal of Research in Crime and Delinquency, vol. 38, no. 3, 2001, pp. 195-225, https://doi.org/10.1177/0022427801038003001.