@misc{indiciae6f89f90f6f52,
  title = {Water resources data for Pennsylvania, water year 1977; Volume 1, Delaware River basin},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1978},
  doi = {10.3133/wdrpa771},
  url = {https://pubs.usgs.gov/publication/wdrPA771},
  note = {Source identifier: wdrPA771}
}