@misc{indiciaea3bfb3194590,
  title = {Oil and gas fields of the United States},
  author = {George V. Cohee and Stewart W. Welch},
  year = {1951},
  doi = {10.3133/70211268},
  url = {https://pubs.usgs.gov/publication/70211268},
  note = {Source identifier: 70211268}
}