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United Nations Environment Programme ,  [Environmental Quality Standards - Compiled as a Supplement of the Assignment Report entitled Environmental Pollution Control Programme] ,  Environmental Quality Standards - Compiled as a Supplement of the Assignment Report entitled Environmental Pollution Control Programme

United Nations Environment Programme ,  [Legal assistance for the elaboration and adaptation of national legislation for the effective implementation of the Basel Convention in Bulgaria, Macedonia and Serbia and Montenegro] ,  Legal assistance for the elaboration and adaptation of national legislation for the effective implementation of the Basel Convention in Bulgaria, Macedonia and Serbia and Montenegro

United Nations Environment Programme ,  [Balkan vital graphics] ,  Balkan vital graphics