@misc{indiciae071bf32f4e09,
  title = {Generalized geologic map of the Charleston, South Carolina, area},
  author = {Lucy McCartan and E. M. Lemon and R. E. Weems},
  year = {1982},
  doi = {10.3133/ofr82187},
  url = {https://pubs.usgs.gov/publication/ofr82187},
  note = {Source identifier: ofr82187}
}