Report to the US Congress: Preventing Crime: What Works, What Doesn’t, What’s Promising (U.S.) http://www.ncjrs.gov/works/
U.S. Department of Justice: National Criminal Justice Reference Service (U.S.) http://www.ncjrs.gov/index.html
Federal Government: Public Safety and Emergency Preparedness Canada: Research Publications http://www.publicsafety.gc.ca/cnt/rsrcs/pblctns/index-eng.aspx?t=mrgnc-mngmnt
Federal Government: Correctional Service Canada: Research http://www.csc-scc.gc.ca/text/rsrch-eng.shtml
