@misc{indiciae38d15bdc3f4f,
  title = {Geology of the Leupp quadrangle, Arizona},
  author = {J. H. Irwin and J. P. Akers and M. E. Cooley},
  year = {1962},
  doi = {10.3133/i352},
  url = {https://pubs.usgs.gov/publication/i352},
  note = {Source identifier: i352}
}