@misc{indiciae71894a834bb7,
  title = {Results of spirit leveling in the state of Washington, 1896 to 1913, inclusive},
  author = {Robert Bradford Marshall},
  year = {1914},
  doi = {10.3133/b557},
  url = {https://pubs.usgs.gov/publication/b557},
  note = {Source identifier: b557}
}