Water-quality assessment of part of the upper Mississippi River Basin, Minnesota and Wisconsin : nitrogen and phosphorus in streams, streambed sediment, and ground water, 1971-94.
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| Format: | Government Document Book |
| Language: | English |
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Mounds View, Minn. :
U.S. Dept. of the Interior, U.S. Geological Survey ;
1997.
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| Series: | Water-resources investigations report ;
97-4107. |
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