The practice of silviculture / Smith, David M. Hawley, Ralph C. Forests and forestry. 634 WIL 1986 A091 Or. Rev. ed. of: The practice of silviculture / Ralph C. Hawley. 7th ed. 1962. New York : Wiley, c1986. c1986. Text xiv, 527 p. : http://www.loc.gov/catdir/enhancements/fy0608/85026410-d.html http://www.loc.gov/catdir/enhancements/fy0608/85026410-t.html