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Effects of Agricultural Best-management Practices on the Brush Run Creek Headwaters, Adams County, Pennsylvania, Prior to and During Nutrient Management
Michael J. LanglandDavid K. Fishel
出版U.S. Department of the Interior, U.S. Geological Survey, 1996
URLhttp://books.google.com.hk/books?id=eGnuAAAAMAAJ&hl=&source=gbs_api
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