APA引文

Ludwig, J., & Cook, P. J. (2003). Evaluating gun policy: Effects on crime and violence. Brookings Institution Press.

Chicago Style (17th ed.) Citation

Ludwig, Jens, and Philip J. Cook. Evaluating Gun Policy: Effects on Crime and Violence. Washington, D.C.: Brookings Institution Press, 2003.

MLA引文

Ludwig, Jens, and Philip J. Cook. Evaluating Gun Policy: Effects on Crime and Violence. Brookings Institution Press, 2003.