@misc{indiciaea04fbaf1fa57,
  title = {Preliminary geologic map of the east central part of the Burdock Quadrangle, Fall River County, South Dakota},
  author = {R. W. Schnabel},
  year = {1957},
  doi = {10.3133/tem1059},
  url = {https://pubs.usgs.gov/publication/tem1059},
  note = {Source identifier: tem1059}
}