@misc{indiciae2b073cce1321,
  title = {Controlled photomosaic of the MTM 40142 Quadrangle, Acheron Fossae Region of Mars},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1993},
  doi = {10.3133/i2321},
  url = {https://pubs.usgs.gov/publication/i2321},
  note = {Source identifier: i2321}
}