@misc{indiciae37a391253d7e,
  title = {Radiometric ages of some Cretaceous and Tertiary volcanic and intrusive rocks in South-central Arizona},
  author = {Norman G. Banks and Roger D. Dockter and Miles L. Silberman and Charles W. Naeser},
  year = {1978},
  url = {https://pubs.usgs.gov/publication/70232572},
  note = {Source identifier: 70232572}
}