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United Nations Environment Programme ,  [Overview on Land-based Pollutant Sources and Activities Affecting the Marine, Coastal, and Freshwater Environment in the Pacific Islands Region: UNEP Regional Seas Reports and Studies No. 174] ,  Overview on Land-based Pollutant Sources and Activities Affecting the Marine, Coastal, and Freshwater Environment in the Pacific Islands Region: UNEP Regional Seas Reports and Studies No. 174

United Nations Environment Programme ,  [Desk study on the environment in Liberia] ,  Desk study on the environment in Liberia

United Nations Environment Programme ,  [UNEP annual report 2000] ,  UNEP annual report 2000