prepared by the U.S. Geological Survey, Biological Resources Division, Northern Prairie Science Center, Jamestown, North Dakota for the U.S. Environmental Protection Agency, Office of Research and Development, National Health and Environmental Effects Research Laboratory, Western Ecology Division, Corvallis, Oregon ; Spencer A. Peterson ... [and others], editors
Department of Commerce, National Oceanic and Atmospheric Administration, National Environmental Satellite Data and Information Service, National Climatic Data Center