@misc{indiciae802a73f24e20,
  title = {The U.S. Geological Survey Federal-State Cooperative Water-Resources Program; fiscal year 1990},
  author = {Bruce K. Gilbert and William B. Mann},
  year = {1991},
  doi = {10.3133/ofr91198},
  url = {https://pubs.usgs.gov/publication/ofr91198},
  note = {Source identifier: ofr91198}
}