@misc{indiciae67870caa55f6,
  title = {Geologic map of the Rupes Altai Quadrangle of the Moon},
  author = {L. C. Rowan},
  year = {1971},
  doi = {10.3133/i690},
  url = {https://pubs.usgs.gov/publication/i690},
  note = {Source identifier: i690}
}