@misc{indiciae4161ba7963ec,
  title = {Structure and oil and gas resources of the Osage Reservation, Oklahoma. Tps. 26 and 27 N., R. 12 E.},
  author = {P. V. Roundy and K. C. Heald and G. B. Richardson},
  year = {1922},
  doi = {10.3133/b686z},
  url = {https://pubs.usgs.gov/publication/b686Z},
  note = {Source identifier: b686Z}
}