@misc{indiciaea2c53e171107,
  title = {Chart showing identification of oil shale and trona beds and their geophysical log responses in the Union Pacific Railroad Company El Paso Corehole no. 44-3, Eocene Green River Formation, southwest Wyoming},
  author = {H. W. Roehler},
  year = {1991},
  doi = {10.3133/mf2188},
  url = {https://pubs.usgs.gov/publication/mf2188},
  note = {Source identifier: mf2188}
}