Esbensen, F. (2004). Evaluating G.R.E.A.T: A school-based gang prevention program. United States Department of Justice.
Chicago-Zitierstil (17. Ausg.)Esbensen, Finn-Aage. Evaluating G.R.E.A.T: A School-based Gang Prevention Program. United States Department of Justice, 2004.
MLA-Zitierstil (9. Ausg.)Esbensen, Finn-Aage. Evaluating G.R.E.A.T: A School-based Gang Prevention Program. United States Department of Justice, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.