@misc{indiciae89e4b8f1ed84,
  title = {Oil-generating coals of the San Juan Basin, New Mexico and Colorado, U.S.A.},
  author = {J.L. Clayton and D. D. Rice and G.E. Michael},
  year = {1991},
  doi = {10.1016/0146-6380(91)90017-e},
  url = {https://pubs.usgs.gov/publication/70015174},
  note = {Source identifier: 70015174}
}