@misc{indiciae09e78cb2de5f,
  title = {Geologic map of the Nepenthes Planum Region, Mars},
  author = {James A. Skinner and Kenneth L. Tanaka},
  year = {2018},
  doi = {10.3133/sim3389},
  url = {https://pubs.usgs.gov/publication/sim3389},
  note = {Source identifier: sim3389}
}