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Presence, Distribution, and Potential Sources of Nitrate and Selected Pesticides in the Surficial Aquifer Along the Straight River in North-central Minnesota, 1992-93
出版U.S. Department of the Interior, U.S. Geological Survey, 1995
URLhttp://books.google.com.hk/books?id=gWebflquIkAC&hl=&source=gbs_api
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