@misc{indiciae1129ee7c898e,
  title = {Aeromagnetic map of the Roxboro Quadrangle, Person and Granville counties, North Carolina},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/gp749},
  url = {https://pubs.usgs.gov/publication/gp749},
  note = {Source identifier: gp749}
}