@misc{indiciae5ebf4e081668,
  title = {Geologic map of the Langrenus Quadrangle of the Moon},
  author = {C. A. Hodges},
  year = {1973},
  doi = {10.3133/i739},
  url = {https://pubs.usgs.gov/publication/i739},
  note = {Source identifier: i739}
}