@misc{indiciae1cd37223e22d,
  title = {Analysis of ground-water system in Orange County, California, by use of an electrical analog model},
  author = {William F. Hardt and E. H. Cordes},
  year = {1971},
  doi = {10.3133/ofr71145},
  url = {https://pubs.usgs.gov/publication/ofr71145},
  note = {Source identifier: ofr71145}
}