@misc{indiciaeae1a88536d33,
  title = {Geologic map of the western half of the Winston-Salem quadrangle, North Carolina, Virginia, and Tennessee},
  author = {D.W. Rankin and G.H. Espenshade and R. B. Neuman},
  year = {1968},
  doi = {10.3133/ofr68221},
  url = {https://pubs.usgs.gov/publication/ofr68221},
  note = {Source identifier: ofr68221}
}