@misc{indiciaef8746121eadd,
  title = {Map showing structural features and dolomite occurrence in the Winchester quadrangle, Clark and Madison Counties, Kentucky},
  author = {Douglas F. B. Black},
  year = {1971},
  doi = {10.3133/ofr7143},
  url = {https://pubs.usgs.gov/publication/ofr7143},
  note = {Source identifier: ofr7143}
}