@misc{indiciaec17ca64b7aa7,
  title = {Brief comparison of some technological and environmental aspects of large-scale surface and underground mining of oil shale, Piceance Creek Basin, Colorado},
  author = {G.A. Miller and John R. Dyni and D.R. Dietz},
  year = {1984},
  url = {https://pubs.usgs.gov/publication/70210052},
  note = {Source identifier: 70210052}
}