@misc{indiciae85b9256dd11d,
  title = {Controlled photomosaic of the Olympus Mons region of Mars},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1981},
  doi = {10.3133/i1379},
  url = {https://pubs.usgs.gov/publication/i1379},
  note = {Source identifier: i1379}
}