@misc{indiciae31a2168eecdb,
  title = {Operation of hydrologic data-collection stations by the U.S. Geological Survey in 1991},
  author = {Alberto Condes de la Torre},
  year = {1992},
  doi = {10.3133/ofr92172},
  url = {https://pubs.usgs.gov/publication/ofr92172},
  note = {Source identifier: ofr92172}
}