@misc{indiciaee0aacb8c23b8,
  title = {Bibliography and index of North American geology, paleontology, petrology, and mineralogy, for the year 1902},
  author = {Fred Boughton Weeks},
  year = {1903},
  doi = {10.3133/b221},
  url = {https://pubs.usgs.gov/publication/b221},
  note = {Source identifier: b221}
}