Natural Areas Conference (15th : 1988 : College of Environmental Science and Forestry)
Albany, N.Y. : New York State Museum, University of the State of New York, State Education Dept., 1990.
1990
Annual Meeting of the Society for Ecological Restoration (1st : 1989 : Oakland, Calif.)
Madison, Wisc. : Society for Ecological Restoration, The Univ. of Wisconsin Arboretum, 1990.
1990