Webster, D. W., & Vernick, J. S. (2014). Updated evidence and policy developments on reducing gun violence in America. Johns Hopkins University Press.
芝加哥风格引文Webster, Daniel W., 与 Jon S. Vernick. Updated Evidence and Policy Developments on Reducing Gun Violence in America. Baltimore: Johns Hopkins University Press, 2014.
MLA引文Webster, Daniel W., 与 Jon S. Vernick. Updated Evidence and Policy Developments on Reducing Gun Violence in America. Johns Hopkins University Press, 2014.
警告：这些引文格式不一定是100％准确.