(1999). Caring for our future: Action for Europe's environment (3rd ed.). Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleCaring for Our Future: Action for Europe's Environment. 3rd ed. Luxembourg: Office for Official Publications of the European Communities, 1999.
Παραπομπή MLACaring for Our Future: Action for Europe's Environment. 3rd ed. Luxembourg: Office for Official Publications of the European Communities, 1999.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.