Cao, L. (2001). A problem in no-problem-policing in Germany: Confidence in the police Germany and USA. European journal of crime, criminal law and criminal justice, 9(3), 167-179. doi:10.1163/15718170120519390
Chicago-Zitierstil (17. Ausg.)Cao, Liqun. "A Problem in No-problem-policing in Germany: Confidence in the Police Germany and USA." European Journal of Crime, Criminal Law and Criminal Justice 9, no. 3 (2001): 167-179. https://doi.org/10.1163/15718170120519390.
MLA-Zitierstil (8. Ausg.)Cao, Liqun. "A Problem in No-problem-policing in Germany: Confidence in the Police Germany and USA." European Journal of Crime, Criminal Law and Criminal Justice, vol. 9, no. 3, 2001, pp. 167-179, https://doi.org/10.1163/15718170120519390.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.