Law enforcement officers killed and assaulted: Summary. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Law Enforcement Officers Killed and Assaulted: Summary. Washington, DC: US Gov. Print. Off.
MLA-Zitierstil (9. Ausg.)Law Enforcement Officers Killed and Assaulted: Summary. US Gov. Print. Off.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.