@misc{indiciae0edd7b61ad2e,
  title = {Water resources of the Delaware River basin},
  author = {Garald G. Parker and A. G. Hely and Walter B. Keighton and F. H. Olmsted},
  year = {1964},
  doi = {10.3133/pp381},
  url = {https://pubs.usgs.gov/publication/pp381},
  note = {Source identifier: pp381}
}