APA (7th ed.) Citation

Ludwig, J., Braga, A. A., & Moore, M. H. (2011). Gun control. Crime and public policy, 257-292.

Chicago Style (17th ed.) Citation

Ludwig, Jens, Anthony Allan Braga, and Mark Harrison Moore. "Gun Control." Crime and Public Policy 2011: 257-292.

MLA (9th ed.) Citation

Ludwig, Jens, et al. "Gun Control." Crime and Public Policy, 2011, pp. 257-292.