@misc{indiciaeca00a0ecea15,
  title = {Geologic map of the Little Hickman quadrangle, central Kentucky},
  author = {Don E. Wolcott},
  year = {1969},
  doi = {10.3133/gq792},
  url = {https://pubs.usgs.gov/publication/gq792},
  note = {Source identifier: gq792}
}