@misc{indiciaec96e914074f4,
  title = {Topographic map of the Coprates Quadrangle of Mars},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/i976},
  url = {https://pubs.usgs.gov/publication/i976},
  note = {Source identifier: i976}
}