@misc{indiciaea20b2feecb8f,
  title = {Bibliography and index of publications relating to ground water prepared by the Geological Survey and cooperating agencies},
  author = {Gerald Ashley Waring and Oscar Edward Meinzer},
  year = {1947},
  doi = {10.3133/wsp992},
  url = {https://pubs.usgs.gov/publication/wsp992},
  note = {Source identifier: wsp992}
}