@misc{indiciae13d7059cbe17,
  title = {Devonian of the Southwestern United States},
  author = {F. G. Poole and D.L. Baars and H. Drewes and P. T. Hayes and K. B. Ketner and E. D. McKee and C. Teichert and J. S. Williams},
  year = {1967},
  url = {https://pubs.usgs.gov/publication/70156255},
  note = {Source identifier: 70156255}
}