@misc{indiciaeb43e1a441079,
  title = {Spirit leveling in the state of Washington 1896 to 1917, inclusive},
  author = {Robert Bradford Marshall},
  year = {1918},
  doi = {10.3133/b674},
  url = {https://pubs.usgs.gov/publication/b674},
  note = {Source identifier: b674}
}