APA
Cheng C., National Bureau of Economic Research & Hoekstra M. (2012). Does Strengthening self-defense law deter crime or escalate violence?. Cambridge: NBER.
Chicago
Cheng Cheng, National Bureau of Economic Research and Hoekstra Mark. 2012. Does Strengthening self-defense law deter crime or escalate violence?. Cambridge: NBER.
Harvard
Cheng C., National Bureau of Economic Research and Hoekstra M. (2012). Does Strengthening self-defense law deter crime or escalate violence?. Cambridge: NBER.
MLA
Cheng Cheng, National Bureau of Economic Research and Hoekstra Mark. Does Strengthening self-defense law deter crime or escalate violence?. Cambridge: NBER. 2012.