@misc{indiciae1d33d2e1436b,
  title = {Reconnaissance geologic map of the Jackson Mountain Quadrangle, Graham County, Arizona},
  author = {P. M. Blacet and S. T. Miller},
  year = {1978},
  doi = {10.3133/mf939},
  url = {https://pubs.usgs.gov/publication/mf939},
  note = {Source identifier: mf939}
}