George, B., & Button, M. (1997). Private security industry regulation: Lessons from abroad for the United Kingdom? International journal of risk, security and crime prevention, 2(3), 187-199.
Chicago-Zitierstil (17. Ausg.)George, Bruce, und Mark Button. "Private Security Industry Regulation: Lessons from Abroad for the United Kingdom?" International Journal of Risk, Security and Crime Prevention 2, no. 3 (1997): 187-199.
MLA-Zitierstil (8. Ausg.)George, Bruce, und Mark Button. "Private Security Industry Regulation: Lessons from Abroad for the United Kingdom?" International Journal of Risk, Security and Crime Prevention, vol. 2, no. 3, 1997, pp. 187-199.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.