@misc{indiciae88dd1cc0fa5f,
  title = {Geologic map of the Thaumasia Quadrangle of Mars},
  author = {G.E. McGill},
  year = {1978},
  doi = {10.3133/i1077},
  url = {https://pubs.usgs.gov/publication/i1077},
  note = {Source identifier: i1077}
}