@misc{indiciae067ee630e7ab,
  title = {Investigations of underground water problems in Arizona, California, New Mexico, and Oregon},
  author = {Arthur M. Piper},
  year = {2014},
  doi = {10.1029/tr013i001p00308},
  url = {https://pubs.usgs.gov/publication/70220411},
  note = {Source identifier: 70220411}
}