@misc{indiciae832653dbe173,
  title = {Geologic Map of MTM -20012 and -25012 Quadrangles, Margaritifer Terra Region of Mars},
  author = {J. A. Grant and S. A. Wilson and C.M. Fortezzo and D. A. Clark},
  year = {2009},
  doi = {10.3133/sim3041},
  url = {https://pubs.usgs.gov/publication/sim3041},
  note = {Source identifier: sim3041}
}