@misc{indiciae04015164bf59,
  title = {Bibliography of North American geology, 1967},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1970},
  doi = {10.3133/b1267},
  url = {https://pubs.usgs.gov/publication/b1267},
  note = {Source identifier: b1267}
}