@misc{indiciaee876f7c7dde3,
  title = {Controlled mosaic of the Yorktown region of Mars (Viking 1 landing site)},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1977},
  doi = {10.3133/i1059},
  url = {https://pubs.usgs.gov/publication/i1059},
  note = {Source identifier: i1059}
}