1. Water-quality assessment of the Eastern Iowa Basins : nitrogen, phosphorus, suspended sediment, and organic carbon in surface water, 1996-1998 Author/Creator: Becher, Kent D. Resource Type: Book Access & Availability: Loading
2. Water-quality assessment of the eastern Iowa basins : selected pesticides and pesticide degradates in streams, 1996-98 Publication/Creation: Denver, CO : U.S. Geological Survey, Information Services [distributor]. Resource Type: Book Access & Availability: Loading