@misc{indiciae8e77f86d6266,
  title = {Orbital-science investigation: Part H: sketch map of the region around the candidate Littrow Apollo landing sites},
  author = {M. H. Carr},
  year = {1972},
  url = {https://pubs.usgs.gov/publication/70042582},
  note = {Source identifier: 70042582}
}