Executive Order 11990 Protection of Wetlands May 24, l977, 42 F.R. 26961 http://www.epa.gov/wetlands/regs/eo11990.html
Our Nation’s Wetlands An Interagency Task Force Report 1978 http://www.nwrc.usgs.gov/wdb/pub/others/OurNationsWetlands1978.pdf
U.S. Fish & Wildlife Service National Wetlands Inventory Wetlands Status and Trends http://www.fws.gov/wetlands/StatusAndTrends/index.html
	NOAA/USFWS joint report on Coastal Wetland Trends 1998-2004 (8.7 MB PDF)
	Status and Trends of Wetlands in the Conterminous United States 1998 to 2004 (Dahl, 2006) (12MB PDF) (Printer version, 33MB PDF)
	Status and Trends of Wetlands in the Conterminous United States 1986 to 1997 (Dahl, T.E. 2000) (8.5MB PDF)
	Wetlands Status and Trends in the Conterminous United States, Mid-1970's to Mid-1980's (6MB PDF)
	Status and Trends of Wetlands and Deepwater Habitats in the Conterminous United States 1950's to 1970's (8MB PDF)
Farm Drainage in the United States History, Status, and Prospects December 1987 http://www.eric.ed.gov/ERICDocs/data/ericdocs2sql/content_storage_01/0000019b/80/1d/93/13.pdf
The Impact of Federal Programs on Wetlands - Volume I The Lower Mississippi Alluvial Plain and the Prairie Pothole Region A Report to Congress by the Secretary of the Interior October 1988 http://www.aswm.org/fwp/historical_interest/ifpw1.pdf
The Impact of Federal Programs on Wetlands - Volume II The Everglades, Coastal Louisiana, Galveston Bay, Puerto Rico, California’s Central Valley, Western Riparian areas, Southeastern and Western Alaska, The Delmarva Peninsula, North Carolina, Northeastern New Jersey, Michigan, and Nebraska A Report to Congress by the Secretary of the Interior March 1994 http://www.doi.gov/oepc/wetlands2/index.html
National Water Summary on Wetland Resources United States Geological Survey Water Supply Paper 2425 1996 http://water.usgs.gov/nwsum/WSP2425/

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