@misc{indiciaed28ec5ad3e1f,
  title = {Geologic map of parts of the Jeffersonville, New Albany, and Charlestown quadrangles, Kentucky-Indiana},
  author = {Roy Clark Kepferle},
  year = {1974},
  doi = {10.3133/gq1211},
  url = {https://pubs.usgs.gov/publication/gq1211},
  note = {Source identifier: gq1211}
}