@misc{indiciae8ce72c89af74,
  title = {The Madison Aquifer study: current status},
  author = {Elliot Morse Cushing},
  year = {1977},
  doi = {10.3133/ofr77692},
  url = {https://pubs.usgs.gov/publication/ofr77692},
  note = {Source identifier: ofr77692}
}