@misc{indiciae3321dab457e7,
  title = {PREPRO: a computer program for encoding regional exploration data for use in characteristic analysis},
  author = {N.J. Bridges and J.T. Hanley and R.B. McCammon},
  year = {1985},
  doi = {10.1016/0098-3004(85)90082-2},
  url = {https://pubs.usgs.gov/publication/70013080},
  note = {Source identifier: 70013080}
}