@misc{indiciae76d65e26fb34,
  title = {Geologic map of the Glen Dean quadrangle, Breckinridge and Hancock Counties, Kentucky},
  author = {Gus H. Goudarzi},
  year = {1970},
  doi = {10.3133/gq836},
  url = {https://pubs.usgs.gov/publication/gq836},
  note = {Source identifier: gq836}
}