European Commission. (2004). Ten key transport and environment issues for policy-makers: TERM 2004 : indicators tracking transport and environment integration in the European Union. Luxembourg: Office for Official Publications of the European Communities.
Παραπομπή Chicago StyleEuropean Commission. Ten Key Transport and Environment Issues for Policy-makers: TERM 2004 : Indicators Tracking Transport and Environment Integration in the European Union. Luxembourg: Office for Official Publications of the European Communities, 2004.
Παραπομπή MLAEuropean Commission. Ten Key Transport and Environment Issues for Policy-makers: TERM 2004 : Indicators Tracking Transport and Environment Integration in the European Union. Luxembourg: Office for Official Publications of the European Communities, 2004.