@misc{indiciae8493127cf32b,
  title = {Topographic map of the Elysium Quadrangle of Mars},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1978},
  doi = {10.3133/i1135},
  url = {https://pubs.usgs.gov/publication/i1135},
  note = {Source identifier: i1135}
}