McGill, D. E., Mihalic, S. F., & Grotpeter, J. K. (1997). Blueprints for violence prevention: Big Brothers Big Sisters of America. Boulder, Colo.: Center for the Study and Prevention of Violence, Institute for Behavioral Sciences, University of Colorado, Boulder.

McGill, Dagmar E., Sharon F. Mihalic, and Jennifer K. Grotpeter. Blueprints for Violence Prevention: Big Brothers Big Sisters of America. Boulder, Colo.: Center for the Study and Prevention of Violence, Institute for Behavioral Sciences, University of Colorado, Boulder, 1997.

McGill, Dagmar E., Sharon F. Mihalic, and Jennifer K. Grotpeter. Blueprints for Violence Prevention: Big Brothers Big Sisters of America. Boulder, Colo.: Center for the Study and Prevention of Violence, Institute for Behavioral Sciences, University of Colorado, Boulder, 1997.