@misc{indiciae0a2785086c33,
  title = {Geologic map of the Little Cypress quadrangle, Kentucky-Illinois},
  author = {Dewey Harold Amos and Edward W. Wolfe},
  year = {1966},
  doi = {10.3133/gq554},
  url = {https://pubs.usgs.gov/publication/gq554},
  note = {Source identifier: gq554}
}