@misc{indiciaee9144192f7d5,
  title = {Pesticides in soils and ground water in selected irrigated agricultural areas near Havre, Ronan, and Huntley, Montana},
  author = {D.W. Clark},
  year = {1990},
  doi = {10.3133/wri904023},
  url = {https://pubs.usgs.gov/publication/wri904023},
  note = {Source identifier: wri904023}
}