@misc{indiciae0332b99f8a1b,
  title = {Bibliography of North American geology, 1948},
  author = {Emma Mertins Thom and Marjorie Hooker and R.R. Dunaven},
  year = {1950},
  doi = {10.3133/b968},
  url = {https://pubs.usgs.gov/publication/b968},
  note = {Source identifier: b968}
}