@misc{indiciaef55c0411c3c5,
  title = {Spirit leveling in California, 1896-1923: 39 degrees to 40 degrees latitude, 122 degrees to 123 degrees longitude},
  author = {Claude Hale Birdseye},
  year = {1925},
  doi = {10.3133/b766tt},
  url = {https://pubs.usgs.gov/publication/b766TT},
  note = {Source identifier: b766TT}
}