International Police Association & Nieder, K. (1990). No border controls any more within the EEC: Policing perspectives of the Single Market of 1993; report on an IPA-seminar from 25th until 30th March 1990. IBZ-Schloß Gimborn.
Chicago-Zitierstil (17. Ausg.)International Police Association und Klaus-Ulrich Nieder. No Border Controls Any More Within the EEC: Policing Perspectives of the Single Market of 1993; Report on an IPA-seminar from 25th Until 30th March 1990. Marienheide: IBZ-Schloß Gimborn, 1990.
MLA-Zitierstil (8. Ausg.)International Police Association und Klaus-Ulrich Nieder. No Border Controls Any More Within the EEC: Policing Perspectives of the Single Market of 1993; Report on an IPA-seminar from 25th Until 30th March 1990. IBZ-Schloß Gimborn, 1990.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.