National League of Cities. (1974). Changing police organizations: Four readings (2.print.). National League of Cities.
Chicago-Zitierstil (17. Ausg.)National League of Cities. Changing Police Organizations: Four Readings. 2.print. Washington, D.C: National League of Cities, 1974.
MLA-Zitierstil (8. Ausg.)National League of Cities. Changing Police Organizations: Four Readings. 2.print. National League of Cities, 1974.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.