@misc{indiciaee029b02393ae,
  title = {Geochemical Modeling of the Madison Aquifer in Parts of Montana, Wyoming, and South Dakota},
  author = {L.N. Plummer and J.F. Busby and R. W. Lee and B.B. Hanshaw},
  year = {2010},
  doi = {10.1029/wr026i009p01981},
  url = {https://pubs.usgs.gov/publication/70207275},
  note = {Source identifier: 70207275}
}