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1
Visual quality objectives in douglas-fir forests /
Portland, OR : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1992

Government Document Book
2
Photo series for quantifying forest residues in the southwestern region : data compiled from Black Hills Ponderosa Pine and Spruce Type, 1990 ; GTR-PNW-105, 1980 ; GTR-PNW-52, 1976 ; GTR-PSW-56, 1981.
[Albuquerque, N.M.] : U.S. Dept. of Agriculture, Forest Service, Southwestern Region, 1996

Government Document Book
4
Selected invasive plants of Alaska.
[Anchorage, Alaska] : U.S. Dept. of Agriculture, Forest Service, Alaska Region, 2007

Government Document Book
5
Invasive plants and their effects on public and private lands.
[Oak Ridge, Tenn.] : Oak Ridge National Laboratory, 2016

Government Document Book
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