@misc{indiciae85f219e800d9,
  title = {Simple Bouguer gravity map of the Mount Pleasant, Albemarle, Denton, and Salisbury quadrangles, west-central North Carolina},
  author = {J. S. Watkins and Zvi Yuval},
  year = {1966},
  doi = {10.3133/gp582},
  url = {https://pubs.usgs.gov/publication/gp582},
  note = {Source identifier: gp582}
}