@misc{indiciae83a2fa3386a9,
  title = {Aeromagnetic map of the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina},
  author = {D. L. Daniels and Isidore Zietz},
  year = {1981},
  doi = {10.3133/i1251b},
  url = {https://pubs.usgs.gov/publication/i1251B},
  note = {Source identifier: i1251B}
}