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Timber resources of west-central Oregon

Brian R. WallCharles L. BolsingerDaniel D. OswaldDavid M. JacobsDavid R. DarrHarold F. HeadyJ. D. LloydPatricia M. BassettVernon J. LaBau

出版	Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1976
URL	http://books.google.com.hk/books?id=r_SEvgEACAAJ&hl=&source=gbs_api