@misc{indiciaef70b36ed24f4,
  title = {Aggradation and degradation of alluvial sand deposits, 1965 to 1986, Colorado River, Grand Canyon National Park, Arizona},
  author = {J. C. Schmidt and J.B. Graf},
  year = {1988},
  doi = {10.3133/ofr87555},
  url = {https://pubs.usgs.gov/publication/ofr87555},
  note = {Source identifier: ofr87555}
}