@misc{indiciaeb726da487140,
  title = {Surface operational maps of the Apennine-Hadley landing site-Apollo 15},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1971},
  doi = {10.3133/ofr71307},
  url = {https://pubs.usgs.gov/publication/ofr71307},
  note = {Source identifier: ofr71307}
}