@misc{indiciae1ead434ab34e,
  title = {Aeromagnetic map of the Milton Quadrangle, Halifax and Pittsylvania counties, Virginia, and Caswell and Person counties, North Carolina},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/gp746},
  url = {https://pubs.usgs.gov/publication/gp746},
  note = {Source identifier: gp746}
}