Casella, R. (2001). At zero tolerance: Punishment, prevention, and school violence. Adolescent cultures, school & society.
Chicago-Zitierstil (17. Ausg.)Casella, Ronnie. "At Zero Tolerance: Punishment, Prevention, and School Violence." Adolescent Cultures, School & Society 2001.
MLA-Zitierstil (8. Ausg.)Casella, Ronnie. "At Zero Tolerance: Punishment, Prevention, and School Violence." Adolescent Cultures, School & Society, 2001.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.