@misc{indiciae457637583c7e,
  title = {(LAC-78) Geologic map of the Theophilus quadrangle of the moon},
  author = {D.J. Milton},
  year = {1968},
  doi = {10.3133/i546},
  url = {https://pubs.usgs.gov/publication/i546},
  note = {Source identifier: i546}
}