APA

National Network for Safe Communities (U.S.), United States, . (2015). Group violence intervention: an implementation guide. Washington, D.C: U.S. Department of Justice, Office of Community Oriented Policing.

Chicago

National Network for Safe Communities (U.S.), United States, . 2015. Group violence intervention: an implementation guide. Washington, D.C: U.S. Department of Justice, Office of Community Oriented Policing.

Harvard

National Network for Safe Communities (U.S.), United States, . (2015). Group violence intervention: an implementation guide. Washington, D.C: U.S. Department of Justice, Office of Community Oriented Policing.

MLA

National Network for Safe Communities (U.S.), United States, . Group violence intervention: an implementation guide. Washington, D.C: U.S. Department of Justice, Office of Community Oriented Policing. 2015.