@misc{indiciaef6fb6a56f332,
  title = {Structure and oil and gas resources of the Osage Reservation, Oklahoma. T. 26 N., R. 8 E.},
  author = {K. C. Heald and K.F. Mather},
  year = {1922},
  doi = {10.3133/b686r},
  url = {https://pubs.usgs.gov/publication/b686R},
  note = {Source identifier: b686R}
}