@misc{indiciae81cb48809625,
  title = {Aeromagnetic map of the Buchanan quadrangle, Liberia},
  author = {John Charles Behrendt and Cletus S. Wotorson},
  year = {1971},
  doi = {10.3133/ofr7121},
  url = {https://pubs.usgs.gov/publication/ofr7121},
  note = {Source identifier: ofr7121}
}