@misc{indiciae1cb439de9910,
  title = {Preliminary simple Bouguer gravity map of the Charlotte 1° x 2° quadrangle, North Carolina and South Carolina},
  author = {Frederick A. Wilson and David L. Daniels},
  year = {1980},
  doi = {10.3133/ofr80311},
  url = {https://pubs.usgs.gov/publication/ofr80311},
  note = {Source identifier: ofr80311}
}