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Trends in Commercial Timberland Area in the United States by State and Ownership, 1952-77, with Projections to 2030
Brian R. Wall
出版Pacific Northwest Forest and Range Experiment Station, Forest Service, U.S. Department of Agriculture, 1981
URLhttp://books.google.com.hk/books?id=qoPypGnrEmoC&hl=&source=gbs_api
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