@misc{indiciae65c2c6916500,
  title = {Operation of hydrologic data-collection stations by the U.S. Geological Survey in 1989},
  author = {Alberto Condes de la Torre},
  year = {1990},
  doi = {10.3133/ofr90171},
  url = {https://pubs.usgs.gov/publication/ofr90171},
  note = {Source identifier: ofr90171}
}