Cook, P. J. (2001). Forward. In B. C. Welsh, D. P. Farrington, & L. W. Sherman (Eds.), Costs and Benefits of Preventing Crime. Boulder, CO: Westview Press.

Cook, P. J. “Forward.” In Costs and Benefits of Preventing Crime, edited by B. C. Welsh, D. P. Farrington, and L. W. Sherman. Boulder, CO: Westview Press, 2001.

Cook PJ. Forward. In: Welsh BC, Farrington DP, Sherman LW, editors. Costs and Benefits of Preventing Crime. Boulder, CO: Westview Press; 2001.

Cook, P. J. “Forward.” Costs and Benefits of Preventing Crime, edited by B. C. Welsh et al., Westview Press, 2001.

Cook PJ. Forward. In: Welsh BC, Farrington DP, Sherman LW, editors. Costs and Benefits of Preventing Crime. Boulder, CO: Westview Press; 2001.