http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
rate of value increase for northern red oak, white oak, and chestnut oak
by George R. Trimble, Jr., and Joseph J. Mendel.
U.S.D.A. Forest Service research paper NE ; -129
Northeastern Forest Experiment Station (Upper Darby, Pa.).