cosponsored by U.S. Geological Survey, Agricultural Research Service, Soil Conservation Serivce, Reston, Virginia, February 5-8, 1990 ; compiled by Madge Ertel
by Eric D. Swain ... [and others] ; prepared as part of the U.S. Geological Survey Priority Ecosystem Science Program and the National Park Service Critical Ecosystem Studies Initiative
by Leslie A. Desimone ... [and others] ; prepared in cooperation with the Massachusetts Department of Environmental Management and the Massachusetts Department of Environmental Protection