@misc{indiciaef82b741bacd7,
  title = {Bibliography of North American geology, 1933 and 1934},
  author = {Emma Mertins Thom},
  year = {1935},
  doi = {10.3133/b869},
  url = {https://pubs.usgs.gov/publication/b869},
  note = {Source identifier: b869}
}