(1990). Cities and the global environment: Proccedings of a european workshop, the Hague 5-7 December 1990. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleCities and the Global Environment: Proccedings of a European Workshop, the Hague 5-7 December 1990. Luxembourg: Office for Official Publications of the European Communities, 1990.
Παραπομπή MLACities and the Global Environment: Proccedings of a European Workshop, the Hague 5-7 December 1990. Luxembourg: Office for Official Publications of the European Communities, 1990.
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