Research Projects Andrews Forest Research Program
CE Center - The Impact of Wood Use on North American Forests
Four Centuries of Change in Northeastern United States Forests
Maryland's Forests Maryland Forests Association
Science Findings US Forest Service Research and Development
National Wildlife Federation Field Guide To Trees Of North America - By Bruce Kershner (paperback) : Target
NCSU Tree Physiology and Ecosystem Science Laboratory - Home
Nontimber Forest Products in the United States by Eric T. Jones, Rebecca J. McLain et al.
Wood Supply from Family Forests of the United States: Biophysical, Social, and Economic Factors