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United Nations Environment ProgrammeInternational Register of Potentially Toxic ChemicalsUSSR State Committee for Science and TechnologyUSSR Commission for UNEP[Second Meeting of Experts on Toxicological and Safety Data for Chemical Substances in International Trade: Summary Report]Second Meeting of Experts on Toxicological and Safety Data for Chemical Substances in International Trade: Summary Report

United Nations Environment ProgrammeUSSR Commission for UNEPEconomic 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 ProgrammeUSSR Commission for UNEP[Principles and Methods of Shifting Sands Fixation]Principles and Methods of Shifting Sands Fixation

United Nations Environment ProgrammeUSSR Commission for UNEP[L'écologie, la gestion et l'efficacité des paturages - Le recueil des matériaux d'études des courses internationaux volume I]L'écologie, la gestion et l'efficacité des paturages - Le recueil des matériaux d'études des courses internationaux volume I

United Nations Environment ProgrammeUSSR Commission for UNEP[L'écologie, la gestion et l'efficacité des paturages - Le recueil des matériaux d'études des courses internationaux volume II]L'écologie, la gestion et l'efficacité des paturages - Le recueil des matériaux d'études des courses internationaux volume II

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