@misc{indiciaeef7af29da986,
  title = {Alas of Mars chart, Mare Tyrrhenum Quadrangle, MC-22},
  author = {United States Geological Survey},
  year = {1973},
  doi = {10.3133/ofr73338},
  url = {https://pubs.usgs.gov/publication/ofr73338},
  note = {Source identifier: ofr73338}
}