@misc{indiciae928fc3bfa627,
  title = {Geologic map of the east side of the Moon},
  author = {D.E. Wilhelms and Farouk El-Baz},
  year = {1977},
  doi = {10.3133/i948},
  url = {https://pubs.usgs.gov/publication/i948},
  note = {Source identifier: i948}
}