@misc{indiciae44f23b44fb7c,
  title = {Ground-water levels in the United States, 1968-72, northeastern states},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1974},
  doi = {10.3133/wsp2140},
  url = {https://pubs.usgs.gov/publication/wsp2140},
  note = {Source identifier: wsp2140}
}