@misc{indiciae3e677a5530f0,
  title = {Pre-Cambrian geology of North America},
  author = {Charles Richard Van Hise and Charles Kenneth Leith},
  year = {1909},
  doi = {10.3133/b360},
  url = {https://pubs.usgs.gov/publication/b360},
  note = {Source identifier: b360}
}