http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Increasing water yield in the Northeast by menagement of forested watersheds
by Howard W. Lull and Kenneth G. Reinhart.
U.S. Forest Service research paper ; NE-66
Northeastern Forest Experiment Station (Upper Darby, Pa.).