Economic comission for Europe. (2003). Environmental policy in transition: Ten years of unece environmental performance reviews.
Chicago-referens (17:e uppl.)Economic comission for Europe. Environmental Policy in Transition: Ten Years of Unece Environmental Performance Reviews. 2003.
MLA-referens (9:e uppl.)Economic comission for Europe. Environmental Policy in Transition: Ten Years of Unece Environmental Performance Reviews. 2003.
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