Watkins, A. M. (2007). Isolating Student, School, and Community Effects on School Weapon Carrying.
Chicago-Zitierstil (17. Ausg.)Watkins, Adam Michael. Isolating Student, School, and Community Effects on School Weapon Carrying. 2007.
MLA-Zitierstil (9. Ausg.)Watkins, Adam Michael. Isolating Student, School, and Community Effects on School Weapon Carrying. 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.