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Ecoregions of Alabama and Georgia

Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; [Denver, Colo. : USGS Information Services, 2002] 2002

Ecoregions of Arkansas

Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, CO : [For sale by the USGS Information Services], 2004. 2004

Ecoregions of Colorado

Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, Colo. : For sale by the Geological Survey, 2006. 2006

A guide to mapping intertidal eelgrass and nonvegetated habitats in estuaries of the Pacific Northwe

Newport, OR : U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Western Ecology Division, [2007] 2007

Method for assessing the chronic toxicity of marine and estuarine sediment-associated contaminants w

Newport, OR : Office of Research and Development, Western Ecology Division, U.S. Environmental Protection Agency ; Washington, D.C. : Office of Science and Technology, Office of Water, U.S. Environmental Protection Agency ; Vicksburg, MS : Engineer Research and Development Center, Waterways Experiment Station, U.S. Army Corps of Engineers, [2001] 2001

Seagrasses and protective criteria a review and assessment of research status

Newport, OR : Western Ecology Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, [2009] 2009

A summary of NHEERL ecological research on global climate change

Corvallis, Or. : Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Western Ecology Division, [2007] 2007