@misc{indiciaeae860cc788da,
  title = {Geologic map of the Wilhelm Quadrangle of the Moon},
  author = {R.S. Saunders and D.E. Wilhelms},
  year = {1974},
  doi = {10.3133/i824},
  url = {https://pubs.usgs.gov/publication/i824},
  note = {Source identifier: i824}
}