@misc{indiciae3015fce3e1ba,
  title = {Results of spirit leveling in New Mexico, 1902 to 1909, inclusive},
  author = {Robert Bradford Marshall},
  year = {1911},
  doi = {10.3133/b464},
  url = {https://pubs.usgs.gov/publication/b464},
  note = {Source identifier: b464}
}