@misc{indiciaee29b8262fc08,
  title = {Analytical results for 78 ground-water samples from the Casa Grande vicinity, Arizona},
  author = {Walter H. Ficklin and D. J. Preston and E. P. Welsch and G.A. Nowlan},
  year = {1981},
  doi = {10.3133/ofr81960},
  url = {https://pubs.usgs.gov/publication/ofr81960},
  note = {Source identifier: ofr81960}
}