@misc{indiciaef993ba3b48a3,
  title = {The U.S. Geological Survey Federal-State Cooperative Water-Resources Program, fiscal year 1991},
  author = {Bruce K. Gilbert and William B. Mann},
  year = {1992},
  doi = {10.3133/ofr92128},
  url = {https://pubs.usgs.gov/publication/ofr92128},
  note = {Source identifier: ofr92128}
}