@misc{indiciaebde93b3b05ef,
  title = {Regional Aquifer-System Analysis Program of the U.S. Geological Survey, 1978-1992},
  author = {Ren Jen Sun and Richard H. Johnston},
  year = {1994},
  doi = {10.3133/cir1099},
  url = {https://pubs.usgs.gov/publication/cir1099},
  note = {Source identifier: cir1099}
}