"Agrarpolitik." . . "Agricultural laws and legislation." . . "Environmentalism Social aspects." . . "United States." . . "Electronic books"@en . . . . . . . . . . . . . . . . . "Food, agriculture, and environmental law"@en . . . . . . . . . . . . . . . . . . . "Umweltpolitik." . . "Agricultural laws and legislation United States." . . . . "USA." . . "Food." . . "Environmental law United States." . . "Sustainable agriculture." . . "Agriculture and state Environmental aspects." . . "Environmental law." . . "Agriculture and state Environmental aspects United States." . . "Environmentalism Social aspects United States." . .