@misc{indiciae3aa165c04673,
  title = {Preliminary report on the geology of the upper La Paz Valley of Bolivia},
  author = {Ernest Dobrovolny},
  year = {1955},
  doi = {10.3133/ofr5542},
  url = {https://pubs.usgs.gov/publication/ofr5542},
  note = {Source identifier: ofr5542}
}