@misc{indiciae915ce7c49036,
  title = {Geologic maps of science study site 1A, East Mangala Valles, Mars},
  author = {Mary G. Chapman and Harold Masursky and A. L. Dial},
  year = {1989},
  doi = {10.3133/i1962},
  url = {https://pubs.usgs.gov/publication/i1962},
  note = {Source identifier: i1962}
}