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1by Furniss, Malcolm M.Subjects: “...Douglas fir beetle....”
Published 1978
Government Document Book -
2Published 1979Subjects: “...Douglas fir beetle....”
Government Document Book -
3by Marsden, Michael A.Subjects: “...Douglas fir beetle....”
Published 1981
Government Document Book -
4Published 1979Subjects: “...Douglas fir beetle Bibliography Catalogs....”
Government Document Book -
5by Furniss, Malcolm M.Subjects: “...Douglas fir Diseases and pests....”
Published 1982
Government Document Book -
6