@misc{indiciae1aeb0518da52,
  title = {Ground-water levels in the United States, 1963-67, northeastern states},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1970},
  doi = {10.3133/wsp1977},
  url = {https://pubs.usgs.gov/publication/wsp1977},
  note = {Source identifier: wsp1977}
}