Economic comission for Europe. (2003). Environmental policy in transition: Ten years of unece environmental performance reviews.
Chicago-Zitierstil (17. Ausg.)Economic comission for Europe. Environmental Policy in Transition: Ten Years of Unece Environmental Performance Reviews. 2003.
MLA-Zitierstil (9. Ausg.)Economic comission for Europe. Environmental Policy in Transition: Ten Years of Unece Environmental Performance Reviews. 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.