Cullen, P. J. (1992). The German police and European co-operation. A system of European police co-operation in 1992.
Chicago-Zitierstil (17. Ausg.)Cullen, Peter J. "The German Police and European Co-operation." A System of European Police Co-operation in 1992 1992.
MLA-Zitierstil (9. Ausg.)Cullen, Peter J. "The German Police and European Co-operation." A System of European Police Co-operation in 1992, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.