APA (7th ed.) Citation

Cook, P. J., & Ludwig, J. (2002). Gun violence: The real cost. University Press.

Chicago Style (17th ed.) Citation

Cook, Philip J., and Jens Ludwig. Gun Violence: The Real Cost. Oxford [etc.]: University Press, 2002.

MLA (9th ed.) Citation

Cook, Philip J., and Jens Ludwig. Gun Violence: The Real Cost. University Press, 2002.