@misc{indiciae40aae8486db3,
  title = {Mineral resource potential map of the James River Face Wilderness, Bedford and Rockbridge counties, Virginia},
  author = {C. Erwin Brown and Gertrude C. Gazdik},
  year = {1982},
  doi = {10.3133/mf1337d},
  url = {https://pubs.usgs.gov/publication/mf1337D},
  note = {Source identifier: mf1337D}
}