@misc{indiciae120dc0bb2518,
  title = {Federal-State Cooperative Water Resources Program; ground-water activities},
  author = {B.K. Gilbert},
  year = {1988},
  doi = {10.3133/ofr88111},
  url = {https://pubs.usgs.gov/publication/ofr88111},
  note = {Source identifier: ofr88111}
}