@misc{indiciaeff4e53024ecc,
  title = {Geologic map of the Jewell Ridge quadrangle, Buchanan and Tazewell Counties, Virginia},
  author = {Kenneth John Englund},
  year = {1981},
  doi = {10.3133/gq1550},
  url = {https://pubs.usgs.gov/publication/gq1550},
  note = {Source identifier: gq1550}
}