National Crime Prevention Council. (1999). Six safer cities: On the crest of the crime prevention wave. National Crime Prevention Council.
Chicago-Zitierstil (17. Ausg.)National Crime Prevention Council. Six Safer Cities: On the Crest of the Crime Prevention Wave. Washington, DC: National Crime Prevention Council, 1999.
MLA-Zitierstil (9. Ausg.)National Crime Prevention Council. Six Safer Cities: On the Crest of the Crime Prevention Wave. National Crime Prevention Council, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.
