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Base-flow Characteristics of Streams in the Valley and Ridge, the Blue Ridge, and the Piedmont Physiographic Provinces of Virginia
David L. NelmsGeorge E. HarlowDonald C. Hayes
出版U.S. Geological Survey, 1997
ISBN06078684149780607868418
URLhttp://books.google.com.hk/books?id=pmbKfjeCiKEC&hl=&source=gbs_api
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