@misc{indiciae12d3197b6f34,
  title = {Preliminary geologic map, geologic map index, and annotated bibliography, Charlotte 2 degree sheet, North Carolina and South Carolina},
  author = {Richard Goldsmith and D. F. Milton and Frederick Albert Wilson},
  year = {1978},
  doi = {10.3133/ofr78590},
  url = {https://pubs.usgs.gov/publication/ofr78590},
  note = {Source identifier: ofr78590}
}