Não informado. Urban data service reports. International City Managers Association.
Chicago-Zitierstil (17. Ausg.)Não informado. Urban Data Service Reports. Washington: International City Managers Association.
MLA-Zitierstil (8. Ausg.)Não informado. Urban Data Service Reports. International City Managers Association.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.