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1by Bormann, Bernard T.Subjects: “...Douglas fir United States....”
Published 1984
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2Published 1986Subjects: “...Douglas fir Canada....”
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3Subjects: “...Douglas fir Spacing Northwestern States....”
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4Published 1983Subjects: “...Douglas fir Diseases and pests United States....”
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5Published 1990Subjects: “...Douglas fir United States....”
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8Published 1998Subjects: “...Fir Diseases and pests Control....”
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9
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10Subjects: “...Douglas fir tussock moth Control United States....”
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11Subjects: “...Douglas fir tussock moth Control United States....”
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12by Dewey, Jerald E.Subjects: “...Douglas fir tussock moth Control United States....”
Published 1978
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13Subjects: “...Douglas fir tussock moth Control United States....”
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14
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15by Rammer, Douglas R.Subjects: “...Douglas fir United States....”
Published 1996
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17Subjects: “...Douglas fir....”
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18Published 1980Subjects: “...Fir United States....”
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19Published 1983Subjects: “...Douglas fir Diseases and pests United States....”
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20Published 1983Subjects: “...Douglas fir Diseases and pests United States....”
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