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Incoming Resources
- Vertical gradients in water chemistry and age in the northern High Plains Aquifer, Nebraska, 2003, by P.B. McMahon, J.K. Böhlke, and C.P. Carney
- Monthly variability and possible sources of nitrate in ground water beneath mixed agricultural land use, Suwannee and Lafayette Counties, Florida, by Brian G. Katz and J.K. Bohlke ; prepared in cooperation with the Florida Department of Environmental Protection
- Monthly variability and possible sources of nitrate in ground water beneath mixed agricultural land use, Suwannee and Lafayette Counties, Florida, by Brian G. Katz and J. K. Bohlke ; prepared in cooperation with the Florida Department of Environmental Protection