@misc{indiciaec3935d9c20ac,
  title = {Ground-water levels in Delaware in 1952},
  author = {I.W. Marine},
  year = {1954},
  doi = {10.3133/ofr54183},
  url = {https://pubs.usgs.gov/publication/ofr54183},
  note = {Source identifier: ofr54183}
}