@misc{indiciae250ac8ae5b0b,
  title = {Informe preliminar sobre la geologia del valle superior de La Paz, Bolivia},
  author = {Ernest Dobrovolny},
  year = {1955},
  doi = {10.3133/ofr5542s},
  url = {https://pubs.usgs.gov/publication/ofr5542S},
  note = {Source identifier: ofr5542S}
}