@misc{indiciae3a994a295f1c,
  title = {Digital geologic map of the Altiplano and Cordillera Occidental, Bolivia},
  author = {Sherman P. Marsh and D.H. Richter and S. D. Ludington and Eduardo Soria-Escalante and Angel Escobar-Diaz},
  year = {1995},
  doi = {10.3133/ofr95494},
  url = {https://pubs.usgs.gov/publication/ofr95494},
  note = {Source identifier: ofr95494}
}