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Species Diversity and Composition in Old Growth and Second Growth Rich Coves of the Southern Appalachian Mountains." Castanea 74, no. 1 (2009): 27-38.
"Potential Natural Landmarks of the Southern Blue Ridge Portion of the Appalachian Ranges Natural Region. National Park Service Office of Science and Technology, 1976.
Along the Blue Ridge Parkway. Englewood, CO: Westcliffe Publishers, 1997.