http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Particleboard, medium-density fiberboard, and Mende Process board plants in the United States
capacity, production, and raw material trends, 1956-1976
by H. Edward Dickerhoof and David B. McKeever.
U.S.D.A. Forest Service resource bulletin FPL ; 6