@misc{indiciaefea0b6526e20,
  title = {Gravity survey data (and a Bouguer gravity anomaly map) of south-central and southwest South Dakota},
  author = {J. S. Klasner and R.P. Kucks},
  year = {1988},
  doi = {10.3133/ofr88552},
  url = {https://pubs.usgs.gov/publication/ofr88552},
  note = {Source identifier: ofr88552}
}