@misc{indiciae5de5bb8548e8,
  title = {Preliminary bibliography of the geology and mineral deposits of Nicaragua},
  author = {H. A. Pierce},
  year = {1992},
  doi = {10.3133/ofr92547},
  url = {https://pubs.usgs.gov/publication/ofr92547},
  note = {Source identifier: ofr92547}
}