@misc{indiciaeb8c860a1df1f,
  title = {Potential for aquifer compaction, land subsidence, and earth fissures in Avra Valley, Pima and Pinal Counties, Arizona},
  author = {S. R. Anderson},
  year = {1987},
  doi = {10.3133/ofr87685},
  url = {https://pubs.usgs.gov/publication/ofr87685},
  note = {Source identifier: ofr87685}
}