@misc{indiciaed1e4c2533306,
  title = {Geologic map of the Casius Quadrangle of Mars},
  author = {R. Greeley and J. E. Guest},
  year = {1978},
  doi = {10.3133/i1038},
  url = {https://pubs.usgs.gov/publication/i1038},
  note = {Source identifier: i1038}
}