@misc{indiciae90118b93e5e8,
  title = {Results of triangulation and primary traverse for the years 1906, 1907, and 1908},
  author = {Robert Bradford Marshall},
  year = {1910},
  doi = {10.3133/b440},
  url = {https://pubs.usgs.gov/publication/b440},
  note = {Source identifier: b440}
}