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The following HTML text is provided to enhance online readability. Many aspects of typography translate only awkwardly to HTML. Please use the page image as the authoritative form to ensure accuracy. of Agreement Regarding Mitigation for Dredged or Fill Material Disposal in Wetlands. February 6. U.S. Department of Agriculture (USDA). 1979. Farm Drainage in the United States. History, Status and Prospects. Miscellaneous Publication No. 1455. Economic Research Service, Washington, D.C. U.S. Department of Agriculture (USDA). 1982. Basic Statistics. Soil Conservation Service, Washington, D.C. U.S. Environmental Protection Agency (EPA). Office of Policy and Analysis. 1984. The Cost of Clean Air and Water Report to Congress. Washington, D.C. U.S. Environmental Protection Agency (EPA). 1990. The Quality of Our Nation's Water. EPA 440/4-90-005. Washington, D.C. U.S. Fish and Wildlife Service. 1990. Wetlands: Meeting the President's Challenge. Washington, D.C. U.S. Geological Survey. 1987. Hydrologic unit maps. USGS Water Supply Paper 2294. Reston, Virginia. Wilson, E. O., ed. 1988. Biodiversity. National Academy Press, Washington, D.C. Woodwell, G. M., ed. 1990. The Earth in Transition: Patterns and Processes of Biotic Impoverishment. Cambridge University Press, Cambridge, Mass. Wooten, H. H., and L. A. Jones. 1955. The history of our drainage enterprises. In Drainage of Fields. Water—The Yearbook of Agriculture 1955. U.S. Department of Agriculture, Washington, D.C.
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