@misc{indiciae6b000acb5338,
  title = {Atlas of Mars chart, Thaumasia Quadrangle, MC-25},
  author = {United States Geological Survey},
  year = {1973},
  doi = {10.3133/ofr73340},
  url = {https://pubs.usgs.gov/publication/ofr73340},
  note = {Source identifier: ofr73340}
}