@misc{indiciaef75197c3f2e4,
  title = {Preliminary description of Apollo 15 sample environments},
  author = {G.A. Swann and M. H. Hait and G. G. Schaber and V. L. Freeman and G. E. Ulrich and E.W. Wolfe and V. S. Reed and R. L. Sutton},
  year = {1971},
  doi = {10.3133/ofr72371},
  url = {https://pubs.usgs.gov/publication/ofr72371},
  note = {Source identifier: ofr72371}
}