APA

Gottfredson D. C., United States & National Criminal Justice Reference Service (U.S.). (2018). Reducing gang violence: a randomized trial of functional family therapy. [Washington, D.C.?]: National Criminal Justice Reference Service, Office of Justice Programs.

Chicago

Gottfredson Denise C, United States and National Criminal Justice Reference Service (U.S.). 2018. Reducing gang violence: a randomized trial of functional family therapy. [Washington, D.C.?]: National Criminal Justice Reference Service, Office of Justice Programs.

Harvard

Gottfredson D. C., United States and National Criminal Justice Reference Service (U.S.). (2018). Reducing gang violence: a randomized trial of functional family therapy. [Washington, D.C.?]: National Criminal Justice Reference Service, Office of Justice Programs.

MLA

Gottfredson Denise C, United States and National Criminal Justice Reference Service (U.S.). Reducing gang violence: a randomized trial of functional family therapy. [Washington, D.C.?]: National Criminal Justice Reference Service, Office of Justice Programs. 2018.