@misc{indiciaed2f7c9e9985b,
  title = {Geology of the Tell City quadrangle, Kentucky-Indiana},
  author = {Frank Darwyn Spencer},
  year = {1964},
  doi = {10.3133/gq356},
  url = {https://pubs.usgs.gov/publication/gq356},
  note = {Source identifier: gq356}
}