@misc{indiciae29e6e6e30351,
  title = {Bibliography of the Geology and Mineral Industry of Liberia and Adjacent Countries: Supplement 1},
  author = {Donald H. Johnson and Richard W. White},
  year = {1970},
  doi = {10.3133/ofr70175},
  url = {https://pubs.usgs.gov/publication/ofr70175},
  note = {Source identifier: ofr70175}
}