@misc{indiciaead8c97cc1923,
  title = {Aeromagnetic map of South Carolina: In color},
  author = {Isidore Zietz and F. E. Riggle and D. L. Daniels},
  year = {1982},
  doi = {10.3133/gp951},
  url = {https://pubs.usgs.gov/publication/gp951},
  note = {Source identifier: gp951}
}