@misc{indiciaeefe8353c8d0f,
  title = {Topographic instructions of the United States Geological Survey. Transit traverse},
  author = {E. M. Douglas},
  year = {1928},
  doi = {10.3133/b788c},
  url = {https://pubs.usgs.gov/publication/b788C},
  note = {Source identifier: b788C}
}