@misc{indiciae6e791855f6d7,
  title = {Geologic map of Mars},
  author = {David Holcomb Scott and M. H. Carr},
  year = {1976},
  doi = {10.3133/ofr76573},
  url = {https://pubs.usgs.gov/publication/ofr76573},
  note = {Source identifier: ofr76573}
}