Descubre y comparte nuestro conocimiento público

United Nations Environment Programme ,  World Health Organization ,  [Assessment of Urban Air Quality] ,  Assessment of Urban Air Quality

United Nations Environment Programme ,  [Eutrosym '76: Proceedings the International Symposium on Eutrophication and Rehabilitation of Surface Water - Vol. I, Part 1] ,  Eutrosym '76: Proceedings the International Symposium on Eutrophication and Rehabilitation of Surface Water - Vol. I, Part 1

United Nations Environment Programme ,  Institute of Water Management of the Ministry of Environmental Protection and Water Management of the German Democratic Republic ,  [Eutrosym ‘76: Proceedings the International Symposium on Eutrophication and Rehabilitation of Surface Water - Vol. II] ,  Eutrosym ‘76: Proceedings the International Symposium on Eutrophication and Rehabilitation of Surface Water - Vol. II

United Nations Educational, Scientific and Cultural Organization ,  United Nations Environment Programme ,  [The Impact of Large Water Projects on the Environment - Proceedings of an International Symposium] ,  The Impact of Large Water Projects on the Environment - Proceedings of an International Symposium