@misc{indiciaea4ae834b75da,
  title = {Oil and gas resources of the Black Warrior Basin, Alabama and Mississippi},
  author = {R. T. Ryder},
  year = {1987},
  doi = {10.3133/ofr87450x},
  url = {https://pubs.usgs.gov/publication/ofr87450X},
  note = {Source identifier: ofr87450X}
}