@misc{indiciaee5420d18a562,
  title = {Spirit leveling in California, 1896-1923: 39 degrees to 40 degrees latitude, 120 degrees to 121 degrees longitude},
  author = {Claude Hale Birdseye},
  year = {1925},
  doi = {10.3133/b766rr},
  url = {https://pubs.usgs.gov/publication/b766RR},
  note = {Source identifier: b766RR}
}