European Environment Agency. (2007). Transport and environment: On the way to a new common transport policy. erm 2006: indicators tracking transport and environment in the European Union. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Environment Agency. Transport and Environment: On the Way to a New Common Transport Policy. Erm 2006: Indicators Tracking Transport and Environment in the European Union. Luxembourg: Office for Official Publications of the European Communities, 2007.
Παραπομπή MLAEuropean Environment Agency. Transport and Environment: On the Way to a New Common Transport Policy. Erm 2006: Indicators Tracking Transport and Environment in the European Union. Luxembourg: Office for Official Publications of the European Communities, 2007.