@misc{indiciae571d14ef9694,
  title = {Petroleum geology of the northern part of the Arctic National Wildlife Refuge, northeastern Alaska},
  author = {Kenneth J. Bird and L. B. Magoon},
  year = {1987},
  doi = {10.3133/b1778},
  url = {https://pubs.usgs.gov/publication/b1778},
  note = {Source identifier: b1778}
}