@misc{indiciae7a7a1dbd8439,
  title = {Geology of the Fordsville quadrangle, Kentucky},
  author = {M.H. Bergendahl and Avery E. Smith},
  year = {1964},
  doi = {10.3133/gq295},
  url = {https://pubs.usgs.gov/publication/gq295},
  note = {Source identifier: gq295}
}