@misc{indiciaefc4a2ee32ba8,
  title = {Controlled photomosaic of part of the Hadriaca region of Mars},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1990},
  doi = {10.3133/i2039},
  url = {https://pubs.usgs.gov/publication/i2039},
  note = {Source identifier: i2039}
}