@misc{indiciae0323476739a7,
  title = {Subsurface temperature map of North America},
  author = {American Association of Petroleum Geologists and U.S. Geological Survey},
  year = {1976},
  doi = {10.3133/70211242},
  url = {https://pubs.usgs.gov/publication/70211242},
  note = {Source identifier: 70211242}
}