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1by Grimble, David G.Subjects: “...Moths Blue Mountains (Or. and Wash.)...”
Published 1993
Government Document Microform Book -
2Recurrent outbreak of the Douglas-fir tussock moth in the Malheur National Forest : a case history /Published 1998Subjects: “...Douglas fir tussock moth Oregon Malheur National Forest....”
Government Document Microform Book