@misc{indiciae2f1ce1f0f0e9,
  title = {Summary of water-resources activities of the U.S. Geological Survey in Colorado– Fiscal year 1991},
  author = {P. A. Griffith},
  year = {1991},
  doi = {10.3133/ofr91210},
  url = {https://pubs.usgs.gov/publication/ofr91210},
  note = {Source identifier: ofr91210}
}