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Forests and forestry
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1
by Solomon, Dale S.
Washington, DC : United States Government Printing Office, 1987
Washington, DC : United States Government Printing Office, 1987
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2
by Tritton, Louise M.
Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1982
Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1982
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3
4
by Widmann, Richard H.
Radnor, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1990
Radnor, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1990
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5
by DeGraaf, Richard M.
[Broomall, Pa.] : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1985
[Broomall, Pa.] : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1985
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6
by Herrick, Owen W.
Broomall, Pa. : Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1977
Broomall, Pa. : Forest Service, U.S. Dept. of Agriculture, Northeastern Forest Experiment Station, 1977
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7
by Widmann, Richard H.
Broomall, PA : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1989
Broomall, PA : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1989
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8
by Vogel, W. G. (Willis Gene), 1930-
Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1981
Broomall, Pa. : U.S. Dept. of Agriculture, Forest Service, Northeastern Forest Experiment Station, 1981
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9
by Shigo, Alex L., 1930-
Upper Darby, Pa., Northeastern Forest Experiment Station, 1969
Upper Darby, Pa., Northeastern Forest Experiment Station, 1969
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