@misc{indiciae12ae76c00c48,
  title = {Index of surface-water records to December 31, 1963: Part 9. - Colorado River basin},
  author = {H.P. Eisenhuth},
  year = {1965},
  doi = {10.3133/cir509},
  url = {https://pubs.usgs.gov/publication/cir509},
  note = {Source identifier: cir509}
}