Webster, D. W., & Vernick, J. S. (2014). Updated Evidence and Policy Developments on Reducing Gun Violence in America. Johns Hopkins University Press.
Chicago-čujuhus (17. p.)Webster, Daniel W., juo Jon S. Vernick. Updated Evidence and Policy Developments on Reducing Gun Violence in America. Johns Hopkins University Press, 2014.
MLA-čujuhus (9. p.)Webster, Daniel W., juo Jon S. Vernick. Updated Evidence and Policy Developments on Reducing Gun Violence in America. Johns Hopkins University Press, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.