@misc{indiciae7e515988c252,
  title = {Walk in the footsteps of the Apollo astronauts: A field guide to northern Arizona astronaut training sites},
  author = {R. Greg Vaughan and Kevin Schindler and Jeanne Stevens and Ian Hough},
  year = {2019},
  doi = {10.1130/2019.0055(12)},
  url = {https://pubs.usgs.gov/publication/70206910},
  note = {Source identifier: 70206910}
}