@misc{indiciae2e49133aefd1,
  title = {Shaded relief map of the Amenthes Quadrangle of Mars},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1977},
  doi = {10.3133/i1023},
  url = {https://pubs.usgs.gov/publication/i1023},
  note = {Source identifier: i1023}
}