@misc{indiciae4b7ab36aceef,
  title = {Rate of recession of Niagara falls, accompanied by a report on the survey of the crest},
  author = {Grove Karl Gilbert and William Carvel Hall},
  year = {1907},
  doi = {10.3133/b306},
  url = {https://pubs.usgs.gov/publication/b306},
  note = {Source identifier: b306}
}