@misc{indiciaefeee7afacd04,
  title = {Geologic map of the Juazohn Quadrangle, Liberia},
  author = {R. G. Tysdal},
  year = {1977},
  doi = {10.3133/i779d},
  url = {https://pubs.usgs.gov/publication/i779D},
  note = {Source identifier: i779D}
}