@misc{indiciae2c6237a05cb0,
  title = {Geologic map of the Clavius Quadrangle of the Moon},
  author = {David Cummings},
  year = {1972},
  doi = {10.3133/i706},
  url = {https://pubs.usgs.gov/publication/i706},
  note = {Source identifier: i706}
}