@misc{indiciae36c22e7dd99b,
  title = {Ground-water levels in the United States, 1956-60, northwestern states},
  author = {O. M. Hackett},
  year = {1963},
  doi = {10.3133/wsp1760},
  url = {https://pubs.usgs.gov/publication/wsp1760},
  note = {Source identifier: wsp1760}
}