@misc{indiciae11a598e3aa26,
  title = {Plan of study for the Black Hills hydrology study, South Dakota},
  author = {Daniel G. Driscoll},
  year = {1992},
  doi = {10.3133/ofr9284},
  url = {https://pubs.usgs.gov/publication/ofr9284},
  note = {Source identifier: ofr9284}
}