Waard, J. d. (1996). The private security industry in the Netherlands: Developments and future perspectives. Security journal, 7(3), 227-234.
Chicago-Zitierstil (17. Ausg.)Waard, Jaap de. "The Private Security Industry in the Netherlands: Developments and Future Perspectives." Security Journal 7, no. 3 (1996): 227-234.
MLA-Zitierstil (8. Ausg.)Waard, Jaap de. "The Private Security Industry in the Netherlands: Developments and Future Perspectives." Security Journal, vol. 7, no. 3, 1996, pp. 227-234.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.