@misc{indiciae318570cca680,
  title = {Geology of the San Juan oil field, Utah. Marsh gas along Grand River near Moab, Utah},
  author = {E. G. Woodruff},
  year = {1912},
  doi = {10.3133/b471a4},
  url = {https://pubs.usgs.gov/publication/b471A4},
  note = {Source identifier: b471A4}
}