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United Nations Environment Programme ,  USSR Commission for UNEP ,  Economic and Social Commission foe Asia and the Pacific ,  [Rangeland Improvement in Arid and Semi-Mud Zones and its Environmental and Socio-Economic Aspects: Proceedings of International Seminar] ,  Rangeland Improvement in Arid and Semi-Mud Zones and its Environmental and Socio-Economic Aspects: Proceedings of International Seminar

United Nations Environment Programme ,  Stiles, Daniel ,  [Listening to the People: Social Aspects of Dryland Management - Proceedings of an International Workshop] ,  Listening to the People: Social Aspects of Dryland Management - Proceedings of an International Workshop

United Nations Environment Programme ,  CIBA-GEIGY Corporation ,  [Only One Earth Forum] ,  Only One Earth Forum