@misc{indiciaeb0af4b4adccb,
  title = {The production history and geology of the Hacks, Ridenour, Riverview and Chapel breccia pipes, northwestern Arizona},
  author = {William L. Chenoweth},
  year = {1988},
  doi = {10.3133/ofr88648},
  url = {https://pubs.usgs.gov/publication/ofr88648},
  note = {Source identifier: ofr88648}
}