@misc{indiciaec8d37db41a25,
  title = {Geology of the Middlesboro North quadrangle, Kentucky},
  author = {Kenneth John Englund and John B. Roen and A. Otis Delaney},
  year = {1964},
  doi = {10.3133/gq300},
  url = {https://pubs.usgs.gov/publication/gq300},
  note = {Source identifier: gq300}
}