@misc{indiciae1dfd6e650d3f,
  title = {Hydrogeologic characterization of the Minnelusa and Madison aquifers near Spearfish, South Dakota},
  author = {E.A. Greene and A.M. Shapiro and Janet M. Carter},
  year = {1999},
  doi = {10.3133/wri984156},
  url = {https://pubs.usgs.gov/publication/wri984156},
  note = {Source identifier: wri984156}
}