@misc{indiciaef7772491dc1f,
  title = {Spirit leveling in California, 1896-1923: 38 degrees to 39 degrees latitude, 120 degrees to 121 degrees longitude},
  author = {Claude Hale Birdseye},
  year = {1925},
  doi = {10.3133/b766nn},
  url = {https://pubs.usgs.gov/publication/b766NN},
  note = {Source identifier: b766NN}
}