@misc{indiciae100a677f3c38,
  title = {Preliminary appraisal of ground water in and near the ancestral Missouri River Valley, northeastern Montana},
  author = {G. W. Levings},
  year = {1986},
  doi = {10.3133/wri864138},
  url = {https://pubs.usgs.gov/publication/wri864138},
  note = {Source identifier: wri864138}
}