| High Plains regional aquifer study revisited; a 20-year retrospective for western Kansas |
Peterson, J.A.; and Bernardo, D.J. |
Great Plains Research vol. 13, no. 2, pp. 179-197 |
2003 |
N/A
|
| Impacts of agricultural chemical policies on groundwater quality |
Sabbagh, G.J.; Geleta, S.; Elliott, R.L.; Mapp, H.P.; Bernardo, D.J.; Watkins, K.B.; and Stone, J.F. |
American Society of Agricultural Engineers, International Summer Meeting, Paper no. 92-2024, unpaginated |
1992 |
N/A
|
| Impacts of agricultural production practices on the quantity and quality of groundwater in the central High Plains |
Mapp, H.P.; Elliott, R.L.; Bernardo, D.J.; Stone, J.F.; Sabbagh, G.J.; Watkins, K.B.; and Geleta, S. |
Oklahoma State University, Department of Agricultural Economics, Stillwater, OK 293 pages |
1991 |
N/A
|