(2002). Cities and regions in an enlarging european union. Polish Academy of Sciences. Committee for Space Economy and Regional Planning.
Chicago-Zitierstil (17. Ausg.)Cities and Regions in an Enlarging European Union. Warszawa: Polish Academy of Sciences. Committee for Space Economy and Regional Planning, 2002.
MLA-Zitierstil (9. Ausg.)Cities and Regions in an Enlarging European Union. Polish Academy of Sciences. Committee for Space Economy and Regional Planning, 2002.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.