| Title: | Water quality control through single crop agriculture, no. 4 |
| Author: | Lundberg, Kenneth R. |
| Author: | Trihey, Patrick T. |
| Author: | United States. Environmental Protection Agency. Office of Research and Development |
| Author: | National Environmental Research Center (Corvallis, Or.) |
| Author: | Bemidji State University. Center for Environmental Studies |
| Note: | Corvallis, Oregon : National Environmental Research Center, Office of Research and Development, U.S. Environmental Protection Agency, 1975., 1975 |
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| Link: | page images at HathiTrust |
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| Subject: | Minnesota -- Clearwater Soil and Water Conservation District |
| Subject: | Water quality |
| Subject: | Water quality -- Minnesota -- Clearwater Soil and Water Conservation District |
| Subject: | Wild rice -- Environmental aspects -- Minnesota -- Clearwater Soil and Water Conservation District |
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