@misc{indiciaeffcab17c2be7,
  title = {Study guide for a beginning course in ground-water hydrology; Part I, Course participants},
  author = {O.L. Franke and T. E. Reilly and R.J. Haefner and D. L. Simmons},
  year = {1990},
  doi = {10.3133/ofr90183},
  url = {https://pubs.usgs.gov/publication/ofr90183},
  note = {Source identifier: ofr90183}
}