@misc{indiciaed1d46d092c51,
  title = {Bibliography of North American geology for 1918, with subject index},
  author = {John M. Nickles},
  year = {1919},
  doi = {10.3133/b698},
  url = {https://pubs.usgs.gov/publication/b698},
  note = {Source identifier: b698}
}