@misc{indiciae1959ea8ebd41,
  title = {Development of photogrammetry in the U.S. Geological Survey},
  author = {Morris M. Thompson},
  year = {1958},
  doi = {10.3133/cir218},
  url = {https://pubs.usgs.gov/publication/cir218},
  note = {Source identifier: cir218}
}