@misc{indiciaeb0e710cfcf52,
  title = {Geologic map of the Valles Marineris region, Mars},
  author = {N.E. Witbeck and K. L. Tanaka and D. H. Scott},
  year = {1991},
  doi = {10.3133/i2010},
  url = {https://pubs.usgs.gov/publication/i2010},
  note = {Source identifier: i2010}
}