@misc{indiciae86d877631bfc,
  title = {Hydrogeologic data collected from a crude-oil spill site near Bemidji, Minnesota, 1983-91},
  author = {S. E. Smith and M. F. Hult},
  year = {1993},
  doi = {10.3133/ofr93496},
  url = {https://pubs.usgs.gov/publication/ofr93496},
  note = {Source identifier: ofr93496}
}