@misc{indiciaee9b1bcb9e840,
  title = {Spirit leveling in California, 1896-1923: 41 degrees to 42 degrees latitude, 121 degrees to 122 degrees longitude},
  author = {Claude Hale Birdseye},
  year = {1925},
  doi = {10.3133/b766xx},
  url = {https://pubs.usgs.gov/publication/b766XX},
  note = {Source identifier: b766XX}
}