@misc{indiciae6e30da54aa4a,
  title = {Geologic map of the Whitesburg quadrangle, Kentucky-Virginia, and part of the Flat Gap quadrangle, Letcher County, Kentucky},
  author = {Charles L. Rice and Don E. Wolcott},
  year = {1973},
  doi = {10.3133/gq1119},
  url = {https://pubs.usgs.gov/publication/gq1119},
  note = {Source identifier: gq1119}
}