@misc{indiciae473c48bf6284,
  title = {Geology of the Buchanan quadrangle, Liberia},
  author = {Russell G. Tysdal},
  year = {1978},
  doi = {10.3133/b1449},
  url = {https://pubs.usgs.gov/publication/b1449},
  note = {Source identifier: b1449}
}