@misc{indiciae7374601d5613,
  title = {Aeromagnetic map of part of the southeastern United States: In color},
  author = {Isidore Zietz and F. P. Gilbert},
  year = {1980},
  doi = {10.3133/gp936},
  url = {https://pubs.usgs.gov/publication/gp936},
  note = {Source identifier: gp936}
}