@misc{indiciaec5fa69c4e23a,
  title = {Aeromagnetic map of South Carolina},
  author = {Isidore Zietz and F. E. Riggle and D. L. Daniels},
  year = {1982},
  doi = {10.3133/gp950},
  url = {https://pubs.usgs.gov/publication/gp950},
  note = {Source identifier: gp950}
}