@misc{indiciaea1862490f403,
  title = {Water-resources activities of the U.S. Geological Survey in Montana, October 1991 through September 1993},
  author = {K. S. Midtlyng and C.J. Harksen},
  year = {1993},
  doi = {10.3133/ofr93151},
  url = {https://pubs.usgs.gov/publication/ofr93151},
  note = {Source identifier: ofr93151}
}