@misc{indiciae830d1b5bba6e,
  title = {Spirit leveling in California, 1896-1923: 33 degrees to 34 degrees latitude, 116 degrees to 117 degrees longitude},
  author = {Claude Hale Birdseye},
  year = {1925},
  doi = {10.3133/b766h},
  url = {https://pubs.usgs.gov/publication/b766H},
  note = {Source identifier: b766H}
}