@misc{indiciae8d5a52165fe1,
  title = {Geochemical survey of the James River Face Wilderness, Bedford and Rockbridge counties, Virginia},
  author = {C. Erwin Brown and David F. Siems},
  year = {1982},
  doi = {10.3133/mf1337b},
  url = {https://pubs.usgs.gov/publication/mf1337B},
  note = {Source identifier: mf1337B}
}