@misc{indiciae66f6338d4699,
  title = {Engineer special study of the surface of the moon},
  author = {Arnold C. Mason and Robert J. Hackman},
  year = {1961},
  doi = {10.3133/i351},
  url = {https://pubs.usgs.gov/publication/i351},
  note = {Source identifier: i351}
}