Ryberg, R. (2021). Improving school safety in the District of Columbia: Lessons learned from an evaluation of Safe School Certification. National Institute of Justice.
Chicago-Zitierstil (17. Ausg.)Ryberg, Renee. Improving School Safety in the District of Columbia: Lessons Learned from an Evaluation of Safe School Certification. National Institute of Justice, 2021.
MLA-Zitierstil (9. Ausg.)Ryberg, Renee. Improving School Safety in the District of Columbia: Lessons Learned from an Evaluation of Safe School Certification. National Institute of Justice, 2021.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.
