Police Foundation, USA, & Police Foundation. (1990). Drugs and violence: Police departments under siege; integrated community drug control strategies. Police Foundation.
Chicago-Zitierstil (17. Ausg.)Police Foundation, USA, und Police Foundation. Drugs and Violence: Police Departments Under Siege; Integrated Community Drug Control Strategies. Washington, DC: Police Foundation, 1990.
MLA-Zitierstil (8. Ausg.)Police Foundation, USA, und Police Foundation. Drugs and Violence: Police Departments Under Siege; Integrated Community Drug Control Strategies. Police Foundation, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.