Supporting Citation:
Gottfredson, D.C. (1997). School-based crime prevention. In L. Sherman (Ed.), Preventing crime: what works, what doesn't, what's promising: A report to the United States Congress (pp. 5-1 - 5-74). Washington, DC: US Department of Justice.
Tierney, J.R., Grossman, J.B. & Resch, N.L. (1997). Making a difference: An impact study of Big Brothers/Big Sisters. In Some things do make a difference for youth: A compendium of evaluations of youth programs and practices. Washington, D.C.: American Youth Policy Forum.