@misc{indiciaeae98de521512,
  title = {Preliminary geologic map of the Nemo district, Black Hills, South Dakota},
  author = {R. W. Bayley},
  year = {1972},
  doi = {10.3133/i712},
  url = {https://pubs.usgs.gov/publication/i712},
  note = {Source identifier: i712}
}