@misc{indiciae8368777e463a,
  title = {Geologic map of the Wayland quadrangle, Knott and Floyd Counties, Kentucky},
  author = {E. Neal Hinrichs and Russell G. Ping},
  year = {1978},
  doi = {10.3133/gq1451},
  url = {https://pubs.usgs.gov/publication/gq1451},
  note = {Source identifier: gq1451}
}