@misc{indiciae648d4079eaaf,
  title = {Index of surface-water records, Part 6, Missouri River basin, to September 30, 1947},
  author = {B. R. Colby and R.E. Oltman},
  year = {1948},
  doi = {10.3133/cir35},
  url = {https://pubs.usgs.gov/publication/cir35},
  note = {Source identifier: cir35}
}