@misc{indiciae6ba4147a2060,
  title = {Atlas of Mars, Samara Vallis area of Mars (part of the Erythraeum region) (controlled photomosaic)},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1973},
  doi = {10.3133/ofr73321},
  url = {https://pubs.usgs.gov/publication/ofr73321},
  note = {Source identifier: ofr73321}
}