@misc{indiciae38f39382285d,
  title = {Geologic map of the Dublin quadrangle, Graves and Hickman Counties, Kentucky},
  author = {John D. Sims},
  year = {1972},
  doi = {10.3133/gq972},
  url = {https://pubs.usgs.gov/publication/gq972},
  note = {Source identifier: gq972}
}