@misc{indiciae9dc6306ecb14,
  title = {Aeromagnetic map of Georgia: In color},
  author = {Isidore Zietz and F. E. Riggle and F. P. Gilbert},
  year = {1980},
  doi = {10.3133/gp941},
  url = {https://pubs.usgs.gov/publication/gp941},
  note = {Source identifier: gp941}
}