@misc{indiciae2b42a08deed9,
  title = {Ground-water-quality-monitoring program in Iowa: Nitrate and pesticides in shallow aquifers},
  author = {M.G. Detroy and P.K. Hunt and M.A. Holub},
  year = {1989},
  doi = {10.3133/wri884123},
  url = {https://pubs.usgs.gov/publication/wri884123},
  note = {Source identifier: wri884123}
}