@misc{indiciae5fb0045b2686,
  title = {Debris flows from tributaries of the Colorado River, Grand Canyon National Park, Arizona; executive summary},
  author = {R. H. Webb},
  year = {1987},
  doi = {10.3133/ofr87117},
  url = {https://pubs.usgs.gov/publication/ofr87117},
  note = {Source identifier: ofr87117}
}