
Water-quality assessment of part of the upper Mississippi River basin study unit, Minnesota and Wisconsin
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U.S. Dept. of the Interior, U.S. Geological Survey, U.S. Geological Survey, Branch of Information Services [distributor]
2003

U.S. Dept. of the Interior, U.S. Geological Survey, U.S. Geological Survey, Branch of Information Services [distributor]
2003

U.S. Department of the Interior, U.S. Geological Survey, U.S. Geological Survey, Branch of Information Services [distributor]
2003

U.S. Dept. of the Interior, U.S. Geological Survey, U.S. Geological Survey, Branch of Information Services [distributor]
2003