1. Dahl, T. E. 2011.Status and trends of wetlands in the conterminous United States 2004–2009, 108Washington, D.C.: U.S. Department of the Interior, Fish and Wildlife Service.
2. National Fish Habitat Board. 2010.Through a fish's eye: the status of fish habitats in the United States 2010, 68Washington, D.C.: Association of Fish and Wildlife Agencies.
3. Stedman, S. and Dahl, T. E. 2008.Status and trends of wetlands in the coastal watersheds of the Eastern United States 1998 to 2004, 32Washington, D.C.: National Oceanic and Atmospheric Administration, National Marine Fisheries Service, and U.S. Department of the Interior, Fish and Wildlife Service.