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The Influence of Cattle Grazing and Grass Seeding on Coniferous Regeneration After Shelterwood Cutting in Eastern Oregon
Kenneth W. Seidel
出版U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station, 1990
URLhttp://books.google.com.hk/books?id=E1G0zvHEFg0C&hl=&source=gbs_api
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