@misc{indiciae7640651d3233,
  title = {Structure and oil and gas resources of the Osage Reservation, Oklahoma. T. 24 N., Rs. 11 and 12 E.},
  author = {O. B. Hopkins and Sidney Powers},
  year = {1922},
  doi = {10.3133/b686s},
  url = {https://pubs.usgs.gov/publication/b686S},
  note = {Source identifier: b686S}
}