Author Details for "Helsel, D.R."
| Title | Author(s) | Publication | Year | Online Access |
|---|---|---|---|---|
| Effects of agriculture on ground-water quality in five regions of the United States | Hamilton, P.A.; and Helsel, D.R. | Ground Water vol. 33, no. 2, pp. 217-226 | 1995 | N/A |
| Effects of agriculture on ground-water quality in five regions of the United States; discussion and reply | Rahn, P.H.; Moran, M.J.; Hamilton, P.A.; and Helsel, D.R. | Ground Water vol. 34, no. 2, p. 369 | 1996 | N/A |