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1Published 1986Subjects: “...Douglas fir Growth Northwest, Pacific....”
Government Document Book -
2by Wickman, Boyd E.Subjects: “...Douglas fir tussock moth Statistics....”
Published 1991
Government Document Book -
3Decay losses associated with wounds in commercially thinned true fir stands in northern California /by Aho, Paul E.Subjects: “...Fir Wounds and injuries California....”
Published 1989
Government Document Book