@misc{indiciaea9b7b66d4bd6,
  title = {Geologic map of the Grimaldi quadrangle of the Moon},
  author = {J.F. McCauley},
  year = {1973},
  doi = {10.3133/i740},
  url = {https://pubs.usgs.gov/publication/i740},
  note = {Source identifier: i740}
}