@misc{indiciaef71e7de98f44,
  title = {Aerial photographic surveys in southeastern Alaska},
  author = {R.H. Sargent and F. H. Moffit},
  year = {1929},
  doi = {10.3133/b797e},
  url = {https://pubs.usgs.gov/publication/b797E},
  note = {Source identifier: b797E}
}