@misc{indiciae2a1636056757,
  title = {Character and geologic habitat of potential deposits of water, carbon and rare gases on the moon},
  author = {Donald Parker Elston},
  year = {1968},
  doi = {10.3133/ofr6896},
  url = {https://pubs.usgs.gov/publication/ofr6896},
  note = {Source identifier: ofr6896}
}