@misc{indiciaedeaf9005db31,
  title = {Progress and future of the ground-water investigations in the lower Delaware River Basin},
  author = {H.C. Barksdale},
  year = {1955},
  doi = {10.3133/ofr554},
  url = {https://pubs.usgs.gov/publication/ofr554},
  note = {Source identifier: ofr554}
}