@misc{indiciaebfe1993589ea,
  title = {Geologic map of the Amonate quadrangle, Buchanan and Tazewell Counties, Virginia, and McDowell County, West Virginia},
  author = {John F. Windolph},
  year = {1987},
  doi = {10.3133/gq1597},
  url = {https://pubs.usgs.gov/publication/gq1597},
  note = {Source identifier: gq1597}
}