@misc{indiciaeb3ded1396899,
  title = {Notes on earth fissures in southern Arizona},
  author = {G.M. Robinson and D.E. Peterson},
  year = {1962},
  doi = {10.3133/cir466},
  url = {https://pubs.usgs.gov/publication/cir466},
  note = {Source identifier: cir466}
}