@misc{indiciaea814578387c6,
  title = {An aeromagnetic and aeroradioactivity survey of Liberia, West Africa},
  author = {John C. Behrendt and Cletus S. Wotorson},
  year = {1971},
  doi = {10.1190/1.1440194},
  url = {https://pubs.usgs.gov/publication/70227394},
  note = {Source identifier: 70227394}
}