@misc{indiciaeedea22c98df2,
  title = {John Wesley Powell: Pioneer statesman of federal science: Chapter A in The Colorado River region and John Wesley Powell (Professional Paper 669)},
  author = {Mary C. Rabbitt},
  year = {1969},
  doi = {10.3133/pp669a},
  url = {https://pubs.usgs.gov/publication/pp669A},
  note = {Source identifier: pp669A}
}